Update web-platform-tests to revision e15b5ebba7465e09bcda2962f6758cddcdcfa248

2025-08-13 09:25:32 +01:00 · 2018-10-09 21:32:32 -04:00 · 2018-10-09 21:32:32 -04:00 · 3eaee747ed
commit 3eaee747ed
parent 68e55ead42
214 changed files with 4692 additions and 245 deletions
--- a/tests/wpt/web-platform-tests/.travis.yml
+++ b/tests/wpt/web-platform-tests/.travis.yml
@ -4,23 +4,19 @@ language: python
 branches:
  only:
    - master
-addons:
-  hosts:
-    - web-platform.test
-    - www.web-platform.test
-    - www1.web-platform.test
-    - www2.web-platform.test
-    - xn--n8j6ds53lwwkrqhv28a.web-platform.test
-    - xn--lve-6lad.web-platform.test
 before_install:
  # This needs be sourced as it sets various env vars
  - . ./tools/ci/before_install.sh
 install:
  - ./tools/ci/install.sh
 matrix:
+  # The use of `if` conditionals to exclude jobs from master should align with
+  # jobs unconditionally listed by `./wpt test-jobs`, regardless of affected
+  # paths. (The reverse is not true, as the manifest job could run on PRs too.)
  fast_finish: true
  include:
    - name: "tag master + upload manifest"
+      if: type = push AND branch = master
      os: linux
      python: "2.7"
      env:
@ -33,18 +29,22 @@ matrix:
        file: $WPT_MANIFEST_FILE.gz
        skip_cleanup: true
    - name: "lint"
+      # lint is run both on master and on PRs
      os: linux
      python: "2.7"
      env: JOB=lint SCRIPT=tools/ci/ci_lint.sh
    - name: "update-built-tests.sh"
+      if: type = pull_request
      os: linux
      python: "2.7"
      env: JOB=update_built SCRIPT=tools/ci/ci_built_diff.sh
    - name: "build-css-testsuites.sh"
+      if: type = pull_request
      os: linux
      python: "2.7"
      env: JOB=build_css SCRIPT=css/build-css-testsuites.sh
    - name: "stability (Firefox Nightly)"
+      if: type = pull_request
      os: linux
      python: "2.7"
      addons:
@ -54,8 +54,8 @@ matrix:
      env:
        - JOB=stability SCRIPT=tools/ci/ci_stability.sh PRODUCT=firefox:nightly
    - name: "stability (Chrome Dev)"
+      if: type = pull_request
      os: linux
-      sudo: required
      python: "2.7"
      addons:
        apt:
@ -65,14 +65,17 @@ matrix:
      env:
        - JOB=stability SCRIPT=tools/ci/ci_stability.sh PRODUCT=chrome:dev
    - name: "tools/ unittests (Python 2)"
+      if: type = pull_request
      os: linux
      python: "2.7"
      env: JOB=tools_unittest TOXENV=py27 HYPOTHESIS_PROFILE=ci SCRIPT=tools/ci/ci_tools_unittest.sh
    - name: "tools/ unittests (Python 3)"
+      if: type = pull_request
      os: linux
      python: "3.6"
      env: JOB=tools_unittest TOXENV=py36 HYPOTHESIS_PROFILE=ci SCRIPT=tools/ci/ci_tools_unittest.sh
    - name: "tools/wpt/ unittests"
+      if: type = pull_request
      os: linux
      python: "2.7"
      addons:
@ -81,10 +84,12 @@ matrix:
            - libnss3-tools
      env: JOB=wpt_integration TOXENV=py27,py27-flake8 SCRIPT=tools/ci/ci_wpt.sh
    - name: "resources/ tests"
+      if: type = pull_request
      os: linux
      python: "2.7"
      env: JOB=resources_unittest TOXENV=py27 SCRIPT=tools/ci/ci_resources_unittest.sh
    - name: "infrastructure/ tests"
+      if: type = pull_request
      os: linux
      python: "2.7"
      env: JOB=wptrunner_infrastructure SCRIPT=tools/ci/ci_wptrunner_infrastructure.sh
--- a/tests/wpt/web-platform-tests/background-fetch/abort.https.window.js
+++ b/tests/wpt/web-platform-tests/background-fetch/abort.https.window.js
@ -1,50 +0,0 @@
-// META: script=/service-workers/service-worker/resources/test-helpers.sub.js
-// META: script=resources/utils.js
-'use strict';
-
-// Covers basic functionality provided by BackgroundFetchManager.abort().
-// https://wicg.github.io/background-fetch/#background-fetch-registration-abort
-
-backgroundFetchTest(async (test, backgroundFetch) => {
-  const registration = await backgroundFetch.fetch(
-      uniqueId(),
-      ['resources/feature-name.txt', '/serviceworker/resources/slow-response.php']);
-
-  assert_true(await registration.abort());
-  assert_false(await registration.abort());
-
-}, 'Aborting the same registration twice fails');
-
-backgroundFetchTest(async (test, backgroundFetch) => {
-  const registration = await backgroundFetch.fetch(
-      uniqueId(),
-      ['resources/feature-name.txt', '/serviceworker/resources/slow-response.php']);
-  const resultPromise = getMessageFromServiceWorker();
-
-  await new Promise(resolve => {
-    registration.onprogress = async (e) => {
-      // The size of the first file.
-      if (e.target.downloaded < 16)
-        return;
-
-      // At this point the first file is downloaded.
-
-      assert_true(await registration.abort());
-
-      const {type, eventRegistration, results} = await resultPromise;
-
-      assert_equals(eventRegistration.result, 'failure');
-      assert_equals(eventRegistration.failureReason, 'aborted');
-
-      assert_equals(type, 'backgroundfetchabort');
-      assert_equals(results.length, 1);
-
-      assert_true(results[0].url.includes('resources/feature-name.txt'));
-      assert_equals(results[0].status, 200);
-      assert_equals(results[0].text, 'Background Fetch');
-
-      resolve();
-    };
-  });
-
-}, 'Calling BackgroundFetchRegistration.abort sets the correct fields and responses are still available');
--- a/tests/wpt/web-platform-tests/background-fetch/service_workers/sw.js
+++ b/tests/wpt/web-platform-tests/background-fetch/service_workers/sw.js
@ -27,4 +27,3 @@ function handleBackgroundFetchUpdateEvent(event) {

 self.addEventListener('backgroundfetchsuccess', handleBackgroundFetchUpdateEvent);
 self.addEventListener('backgroundfetchfail', handleBackgroundFetchUpdateEvent);
-self.addEventListener('backgroundfetchabort', handleBackgroundFetchUpdateEvent);
--- a/tests/wpt/web-platform-tests/content-security-policy/generic/directive-name-case-insensitive.sub.html
+++ b/tests/wpt/web-platform-tests/content-security-policy/generic/directive-name-case-insensitive.sub.html
@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <meta http-equiv="Content-Security-Policy" content="
+      IMg-sRC 'self' 'unsafe-inline' http://{{domains[www1]}}:{{ports[http][0]}};
+      img-src 'self' 'unsafe-inline' http://{{domains[www2]}}:{{ports[http][0]}};">
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+</head>
+
+<body>
+  <script>
+    var t1 = async_test("Test that the www1 image is allowed to load");
+    var t2 = async_test("Test that the www2 image is not allowed to load");
+    var t_spv = async_test("Test that the www2 image throws a violation event");
+    window.addEventListener("securitypolicyviolation", t_spv.step_func_done(function(e) {
+      assert_equals(e.violatedDirective, "img-src");
+      assert_equals(e.blockedURI, "http://{{domains[www2]}}:{{ports[http][0]}}/content-security-policy/support/fail.png");
+    }));
+  </script>
+
+  <img src="http://{{domains[www1]}}:{{ports[http][0]}}/content-security-policy/support/pass.png"
+       onload="t1.done();"
+       onerror="t1.step(function() { assert_unreached('www1 image should have loaded'); t1.done(); });">
+
+  <img src="http://{{domains[www2]}}:{{ports[http][0]}}/content-security-policy/support/fail.png"
+       onerror="t2.done();"
+       onload="t2.step(function() { assert_unreached('www2 image should not have loaded'); t2.done(); });">
+</body>
+
+</html>
--- a/tests/wpt/web-platform-tests/content-security-policy/inheritance/blob-url-self-navigate-inherits.sub.html
+++ b/tests/wpt/web-platform-tests/content-security-policy/inheritance/blob-url-self-navigate-inherits.sub.html
@ -0,0 +1,23 @@
+<!DOCTYPE html>
+<html>
+
+<head>
+    <script nonce="abc" src="/resources/testharness.js"></script>
+    <script nonce="abc" src="/resources/testharnessreport.js"></script>
+</head>
+
+<!-- This tests that navigating a main window to a local scheme preserves the current CSP.
+     We need to test this in a main window with no parent/opener so we use
+     a link with target=_blank and rel=noopener. -->
+<body>
+    <script>
+      const a = document.createElement("a")
+      a.href = "support/navigate-self-to-blob.html?csp=script-src%20%27nonce-abc%27&report_id={{$id:uuid()}}";
+      a.target = "_blank"
+      a.rel = "noopener"
+      a.click()
+    </script>
+    <script async defer src='../support/checkReport.sub.js?reportField=violated-directive&reportValue=script-src%20%27nonce-abc%27&reportID={{$id}}'></script>
+</body>
+
+</html>
--- a/tests/wpt/web-platform-tests/content-security-policy/inheritance/support/navigate-self-to-blob.html
+++ b/tests/wpt/web-platform-tests/content-security-policy/inheritance/support/navigate-self-to-blob.html
@ -0,0 +1,6 @@
+<script nonce="abc">
+  var blob_string = "<script>alert(document.domain)<\/script>";
+  var blob = new Blob([blob_string], {type : 'text/html'});
+  var url = URL.createObjectURL(blob);
+  location.href=url;
+</script>
--- a/tests/wpt/web-platform-tests/content-security-policy/inheritance/support/navigate-self-to-blob.html.sub.headers
+++ b/tests/wpt/web-platform-tests/content-security-policy/inheritance/support/navigate-self-to-blob.html.sub.headers
@ -0,0 +1,4 @@
+Expires: Mon, 26 Jul 1997 05:00:00 GMT
+Cache-Control: no-store, no-cache, must-revalidate
+Pragma: no-cache
+Content-Security-Policy: {{GET[csp]}}; report-uri http://{{host}}:{{ports[http][0]}}/content-security-policy/support/report.py?op=put&reportID={{GET[report_id]}}
--- a/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-1.html
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-1.html
@ -0,0 +1,20 @@
+<html>
+<head>
+    <meta http-equiv="Content-Security-Policy" content="script-src 'self' 'nonce-abc' 'sha256-c6TzhBw/snA+hlDMGOuKLWXIkb2sawA/S1wbSe6FeEM=';">
+    <script src='/resources/testharness.js'></script>
+    <script src='/resources/testharnessreport.js'></script>
+</head>
+<body>
+    <script nonce="abc">
+      var t1 = async_test("Should convert the script contents to UTF-8 before hashing");
+      window.addEventListener("securitypolicyviolation", t1.unreached_func("Should not have fired a spv"));
+    </script>
+
+    <!-- <20> (micro sign) has the value of 0xB5 in latin-1 and of 0xC2B5 in utf-8 but the hash value should be the same as the utf-8 computed one -->
+    <script>
+      // <20> - latin micro sign
+      t1.done();
+    </script>
+</body>
+</html>
+
--- a/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-1.html.sub.headers
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-1.html.sub.headers
@ -0,0 +1 @@
+Content-Type: text/html; charset=iso-8859-1
--- a/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-3.html
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-3.html
@ -0,0 +1,20 @@
+<html>
+<head>
+    <meta http-equiv="Content-Security-Policy" content="script-src 'self' 'nonce-abc' 'sha256-hbNM6T3uO5pu4o5YfNnUmwtq5VHHMr7V5ospXtx9bqU=';">
+    <script src='/resources/testharness.js'></script>
+    <script src='/resources/testharnessreport.js'></script>
+</head>
+<body>
+    <script nonce="abc">
+      var t3 = async_test("Should convert the script contents to UTF-8 before hashing");
+      window.addEventListener("securitypolicyviolation", t3.unreached_func("Should not have fired a spv"));
+    </script>
+
+    <!-- <20> (latin capital letter g with breve) has the value of 0xAB in latin-3 and of 0xC49E in utf-8 but the hash value should be the same as the utf-8 computed one -->
+    <script>
+      // <20> - latin capital letter g with breve
+      t3.done();
+    </script>
+</body>
+</html>
+
--- a/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-3.html.sub.headers
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-3.html.sub.headers
@ -0,0 +1 @@
+Content-Type: text/html; charset=iso-8859-3
--- a/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-7.html
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-7.html
@ -0,0 +1,20 @@
+<html>
+<head>
+    <meta http-equiv="Content-Security-Policy" content="script-src 'self' 'nonce-abc' 'sha256-ST0rpskqtEC0Q0hqbIAZFeE1KBMJeGZGyYaTcTkieG8=';">
+    <script src='/resources/testharness.js'></script>
+    <script src='/resources/testharnessreport.js'></script>
+</head>
+<body>
+    <script nonce="abc">
+      var t2 = async_test("Should convert the script contents to UTF-8 before hashing");
+      window.addEventListener("securitypolicyviolation", t2.unreached_func("Should not have fired a spv"));
+    </script>
+
+    <!-- <20> (greek small letter mu) has the value of 0xEC in latin-7 and of 0xCEBC in utf-8 but the hash value should be the same as the utf-8 computed one -->
+    <script>
+      // <20> - greek small letter mu
+      t2.done();
+    </script>
+</body>
+</html>
+
--- a/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-7.html.sub.headers
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-7.html.sub.headers
@ -0,0 +1 @@
+Content-Type: text/html; charset=iso-8859-7
--- a/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-9.html
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-9.html
@ -0,0 +1,20 @@
+<html>
+<head>
+    <meta http-equiv="Content-Security-Policy" content="script-src 'self' 'nonce-abc' 'sha256-hbNM6T3uO5pu4o5YfNnUmwtq5VHHMr7V5ospXtx9bqU=';">
+    <script src='/resources/testharness.js'></script>
+    <script src='/resources/testharnessreport.js'></script>
+</head>
+<body>
+    <script nonce="abc">
+      var t3 = async_test("Should convert the script contents to UTF-8 before hashing");
+      window.addEventListener("securitypolicyviolation", t3.unreached_func("Should not have fired a spv"));
+    </script>
+
+    <!-- <20> (latin capital letter g with breve) has the value of 0xD0 in latin-9 and of 0xC49E in utf-8 but the hash value should be the same as the utf-8 computed one -->
+    <script>
+      // <20> - latin capital letter g with breve
+      t3.done();
+    </script>
+</body>
+</html>
+
--- a/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-9.html.sub.headers
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/iso-8859-9.html.sub.headers
@ -0,0 +1 @@
+Content-Type: text/html; charset=iso-8859-9
--- a/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/utf-8-lone-surrogate.html
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/utf-8-lone-surrogate.html
@ -0,0 +1,31 @@
+<html>
+<head>
+    <meta http-equiv="Content-Security-Policy" content="script-src 'self' 'nonce-abc' 'sha256-YJSaNEZFStZqU2Mp2EttwhcP2aT9lnDvexn+BM2HfKo=';">
+    <script src='/resources/testharness.js'></script>
+    <script src='/resources/testharnessreport.js'></script>
+</head>
+<body>
+    <script nonce="abc">
+      var t = async_test("Should convert the script contents to UTF-8 before hashing");
+      var count = 0;
+      var script_ran = function() {
+        // if both blocks run the tests is succsssful
+        if (++count == 2) t.done();
+      }
+      window.addEventListener("securitypolicyviolation", t.unreached_func("Should not have fired a spv"));
+
+      // Insert a script element that contains the U+FFFD replacement character
+      var scr1 = document.createElement('script');
+      scr1.text ="//\uFFFD\nscript_ran();";
+      document.body.appendChild(scr1);
+
+      // Insert a script element that contains a surrogate character but it otherwise
+      // entirely identical to the previously inserted one, the surrogate should be
+      // be converted to U+FFFD when converting to UTF-8 so it should have the
+      // same hash as the one inserted before
+      var scr2 = document.createElement('script');
+      scr2.text ="//\uD801\nscript_ran();";
+      document.body.appendChild(scr2);
+    </script>
+</body>
+</html>
--- a/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/utf-8-lone-surrogate.html.sub.headers
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/utf-8-lone-surrogate.html.sub.headers
@ -0,0 +1 @@
+Content-Type: text/html; charset=utf-8
--- a/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/utf-8.html
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/utf-8.html
@ -0,0 +1,36 @@
+<html>
+<head>
+    <meta http-equiv="Content-Security-Policy" content="script-src 'self' 'nonce-abc'
+          'sha256-c6TzhBw/snA+hlDMGOuKLWXIkb2sawA/S1wbSe6FeEM='
+          'sha256-ST0rpskqtEC0Q0hqbIAZFeE1KBMJeGZGyYaTcTkieG8='
+          'sha256-hbNM6T3uO5pu4o5YfNnUmwtq5VHHMr7V5ospXtx9bqU=';">
+          <!-- hashes matching the 3 script blocks below -->
+    <script src='/resources/testharness.js'></script>
+    <script src='/resources/testharnessreport.js'></script>
+</head>
+<body>
+    <script nonce="abc">
+      var t1 = async_test("Should convert the script contents to UTF-8 before hashing - latin micro sign");
+      window.addEventListener("securitypolicyviolation", t1.unreached_func("Should not have fired a spv"));
+      var t2 = async_test("Should convert the script contents to UTF-8 before hashing - greek small letter mu");
+      window.addEventListener("securitypolicyviolation", t2.unreached_func("Should not have fired a spv"));
+      var t3 = async_test("Should convert the script contents to UTF-8 before hashing - latin capital letter g with breve");
+      window.addEventListener("securitypolicyviolation", t3.unreached_func("Should not have fired a spv"));
+    </script>
+
+    <!-- the hash values of these script blocks should match the same values
+         of identical script blocks in documents with other encodings -->
+    <script>
+      // µ - latin micro sign
+      t1.done();
+    </script>
+    <script>
+      // μ - greek small letter mu
+      t2.done();
+    </script>
+    <script>
+      // Ğ - latin capital letter g with breve
+      t3.done();
+    </script>
+</body>
+</html>
--- a/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/utf-8.html.sub.headers
+++ b/tests/wpt/web-platform-tests/content-security-policy/script-src/hash-always-converted-to-utf-8/utf-8.html.sub.headers
@ -0,0 +1 @@
+Content-Type: text/html; charset=utf-8
--- a/tests/wpt/web-platform-tests/css/CSS2/positioning/absolute-non-replaced-height-013.html
+++ b/tests/wpt/web-platform-tests/css/CSS2/positioning/absolute-non-replaced-height-013.html
@ -0,0 +1,9 @@
+<!DOCTYPE html>
+<title>Auto margin-top and margin-bottom, non-auto everything else</title>
+<link rel="author" title="Morten Stenshorne" href="mstensho@chromium.org">
+<link rel="help" href="https://www.w3.org/TR/CSS22/visudet.html#abs-non-replaced-height">
+<link rel="match" href="../../reference/ref-filled-green-100px-square.xht">
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div style="position:relative; width:100px; height:100px; background:red;">
+  <div style="position:absolute; top:50%; bottom:50%; width:100px; height:100px; margin:auto; background:green;"></div>
+</div>
--- a/tests/wpt/web-platform-tests/css/css-flexbox/dynamic-bsize-change-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/dynamic-bsize-change-ref.html
@ -0,0 +1,18 @@
+<!doctype html>
+<title>CSS Test Reference</title>
+<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
+<style>
+  div {
+    border: 1px solid;
+  }
+  #myHeightChanges {
+    width: 100px;
+    height: 200px;
+    background: green;
+  }
+</style>
+<div style="display:flex; flex-direction:column">
+  <div style="height:auto">
+    <div id="myHeightChanges"></div>
+  </div>
+</div>
--- a/tests/wpt/web-platform-tests/css/css-flexbox/dynamic-bsize-change.html
+++ b/tests/wpt/web-platform-tests/css/css-flexbox/dynamic-bsize-change.html
@ -0,0 +1,28 @@
+<!doctype html>
+<title>CSS Test: Dynamic change to the block size inside an auto-sized flex item</title>
+<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
+<link rel="author" title="Mozilla" href="https://mozilla.org">
+<link rel="help" href="https://drafts.csswg.org/css-flexbox">
+<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1496833">
+<link rel="match" href="dynamic-bsize-change-ref.html">
+<style>
+  div {
+    border: 1px solid;
+  }
+  #myHeightChanges {
+    width: 100px;
+    height: 100px;
+    background: green;
+  }
+</style>
+<div style="display:flex; flex-direction:column">
+  <div style="height:auto">
+    <div id="myHeightChanges"></div>
+  </div>
+</div>
+<script>
+onload = function() {
+  window.unused = myHeightChanges.offsetTop;
+  myHeightChanges.style.height = "200px";
+}
+</script>
--- a/tests/wpt/web-platform-tests/css/css-grid/abspos/support/grid.css
+++ b/tests/wpt/web-platform-tests/css/css-grid/abspos/support/grid.css
@ -68,6 +68,12 @@
  grid-row: 3;
 }

+.thirdRowThirdColumn {
+  background-color: salmon;
+  grid-column: 3;
+  grid-row: 3;
+}
+
 .firstRowThirdColumn {
  background-color: magenta;
  grid-column: 3;
--- a/tests/wpt/web-platform-tests/css/css-grid/grid-definition/support/grid.css
+++ b/tests/wpt/web-platform-tests/css/css-grid/grid-definition/support/grid.css
@ -68,6 +68,12 @@
  grid-row: 3;
 }

+.thirdRowThirdColumn {
+  background-color: salmon;
+  grid-column: 3;
+  grid-row: 3;
+}
+
 .firstRowThirdColumn {
  background-color: magenta;
  grid-column: 3;
--- a/tests/wpt/web-platform-tests/css/css-grid/grid-items/grid-items-relative-offsets-001.html
+++ b/tests/wpt/web-platform-tests/css/css-grid/grid-items/grid-items-relative-offsets-001.html
@ -0,0 +1,95 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Grid Layout Test: Grid items with relative offsets</title>
+<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-grid/#grid-item-sizing">
+<meta name="assert" content="Checks that relative offests work for grid items.">
+<link rel="stylesheet" href="support/grid.css">
+<style>
+.grid {
+  position: relative;
+  grid: 90px 60px 30px / 200px 150px 100px;
+  inline-size: 600px;
+  block-size: 300px;
+}
+
+.grid > div { position: relative; }
+</style>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/check-layout-th.js"></script>
+
+<body onload="checkLayout('.grid')">
+
+<div id="log"></div>
+
+<h3>Direction LTR</h3>
+
+<div class="grid">
+  <div class="firstRowFirstColumn" style="left: 10px; top: 9px;"
+    data-offset-x="10" data-offest-y="9" data-expected-width="200" data-expected-height="90"></div>
+  <div class="secondRowSecondColumn" style="left: -15px; top: -12px;"
+    data-offset-x="185" data-offest-y="78" data-expected-width="150" data-expected-height="60"></div>
+  <div class="thirdRowThirdColumn" style="right: 30px; bottom: 21px;"
+    data-offset-x="320" data-offest-y="129" data-expected-width="100" data-expected-height="30"></div>
+</div>
+
+<h3>Direction RTL</h3>
+
+<div class="grid directionRTL">
+  <div class="firstRowFirstColumn" style="left: 10px; top: 9px;"
+    data-offset-x="410" data-offest-y="9" data-expected-width="200" data-expected-height="90"></div>
+  <div class="secondRowSecondColumn" style="left: -15px; top: -12px;"
+    data-offset-x="235" data-offest-y="78" data-expected-width="150" data-expected-height="60"></div>
+  <div class="thirdRowThirdColumn" style="right: 30px; bottom: 21px;"
+    data-offset-x="120" data-offest-y="129" data-expected-width="100" data-expected-height="30"></div>
+</div>
+
+<h2>Writing Mode vertical-lr</h2>
+
+<h3>Direction LTR</h3>
+
+<div class="grid verticalLR">
+  <div class="firstRowFirstColumn" style="left: 9px; top: 10px;"
+    data-offset-x="9" data-offest-y="10" data-expected-width="90" data-expected-height="200"></div>
+  <div class="secondRowSecondColumn" style="left: -12px; top: -15px;"
+    data-offset-x="78" data-offest-y="75" data-expected-width="60" data-expected-height="150"></div>
+  <div class="thirdRowThirdColumn" style="right: 21px; bottom: 30px;"
+    data-offset-x="129" data-offest-y="120" data-expected-width="30" data-expected-height="100"></div>
+</div>
+
+<h3>Direction RTL</h3>
+
+<div class="grid verticalLR directionRTL">
+  <div class="firstRowFirstColumn" style="left: 9px; top: 10px;"
+    data-offset-x="9" data-offest-y="10" data-expected-width="90" data-expected-height="200"></div>
+  <div class="secondRowSecondColumn" style="left: -12px; top: -15px;"
+    data-offset-x="78" data-offest-y="75" data-expected-width="60" data-expected-height="150"></div>
+  <div class="thirdRowThirdColumn" style="right: 21px; bottom: 30px;"
+    data-offset-x="129" data-offest-y="120" data-expected-width="30" data-expected-height="100"></div>
+</div>
+
+<h2>Writing Mode vertical-rl</h2>
+
+<h3>Direction LTR</h3>
+
+<div class="grid verticalRL">
+  <div class="firstRowFirstColumn" style="left: 9px; top: 10px;"
+    data-offset-x="219" data-offest-y="10" data-expected-width="90" data-expected-height="200"></div>
+  <div class="secondRowSecondColumn" style="left: -12px; top: -15px;"
+    data-offset-x="138" data-offest-y="75" data-expected-width="60" data-expected-height="150"></div>
+  <div class="thirdRowThirdColumn" style="right: 21px; bottom: 30px;"
+    data-offset-x="99" data-offest-y="120" data-expected-width="30" data-expected-height="100"></div>
+</div>
+
+<h3>Direction RTL</h3>
+
+<div class="grid verticalRL directionRTL">
+  <div class="firstRowFirstColumn" style="left: 9px; top: 10px;"
+    data-offset-x="219" data-offest-y="10" data-expected-width="90" data-expected-height="200"></div>
+  <div class="secondRowSecondColumn" style="left: -12px; top: -15px;"
+    data-offset-x="138" data-offest-y="75" data-expected-width="60" data-expected-height="150"></div>
+  <div class="thirdRowThirdColumn" style="right: 21px; bottom: 30px;"
+    data-offset-x="99" data-offest-y="120" data-expected-width="30" data-expected-height="100"></div>
+</div>
+
--- a/tests/wpt/web-platform-tests/css/css-grid/grid-items/grid-items-relative-offsets-002.html
+++ b/tests/wpt/web-platform-tests/css/css-grid/grid-items/grid-items-relative-offsets-002.html
@ -0,0 +1,94 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Grid Layout Test: Grid items with relative offsets</title>
+<link rel="author" title="Manuel Rego Casasnovas" href="mailto:rego@igalia.com">
+<link rel="help" href="https://drafts.csswg.org/css-grid/#grid-item-sizing">
+<meta name="assert" content="Checks that relative percentage offests work for grid items.">
+<link rel="stylesheet" href="support/grid.css">
+<style>
+.grid {
+  position: relative;
+  grid: 90px 60px 30px / 200px 150px 100px;
+  inline-size: 600px;
+  block-size: 300px;
+}
+
+.grid > div { position: relative; }
+</style>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/check-layout-th.js"></script>
+
+<body onload="checkLayout('.grid')">
+
+<div id="log"></div>
+
+<h3>Direction LTR</h3>
+
+<div class="grid">
+  <div class="firstRowFirstColumn" style="left: 5%; top: 10%;"
+    data-offset-x="10" data-offest-y="9" data-expected-width="200" data-expected-height="90"></div>
+  <div class="secondRowSecondColumn" style="left: -10%; top: -20%;"
+    data-offset-x="185" data-offest-y="78" data-expected-width="150" data-expected-height="60"></div>
+  <div class="thirdRowThirdColumn" style="right: 30%; bottom: 70%;"
+    data-offset-x="320" data-offest-y="129" data-expected-width="100" data-expected-height="30"></div>
+</div>
+
+<h3>Direction RTL</h3>
+
+<div class="grid directionRTL">
+  <div class="firstRowFirstColumn" style="left: 5%; top: 10%;"
+    data-offset-x="410" data-offest-y="9" data-expected-width="200" data-expected-height="90"></div>
+  <div class="secondRowSecondColumn" style="left: -10%; top: -20%;"
+    data-offset-x="235" data-offest-y="78" data-expected-width="150" data-expected-height="60"></div>
+  <div class="thirdRowThirdColumn" style="right: 30%; bottom: 70%;"
+    data-offset-x="120" data-offest-y="129" data-expected-width="100" data-expected-height="30"></div>
+</div>
+
+<h2>Writing Mode vertical-lr</h2>
+
+<h3>Direction LTR</h3>
+
+<div class="grid verticalLR">
+  <div class="firstRowFirstColumn" style="left: 10%; top: 5%;"
+    data-offset-x="9" data-offest-y="10" data-expected-width="90" data-expected-height="200"></div>
+  <div class="secondRowSecondColumn" style="left: -20%; top: -10%;"
+    data-offset-x="78" data-offest-y="75" data-expected-width="60" data-expected-height="150"></div>
+  <div class="thirdRowThirdColumn" style="right: 70%; bottom: 30%;"
+    data-offset-x="129" data-offest-y="120" data-expected-width="30" data-expected-height="100"></div>
+</div>
+
+<h3>Direction RTL</h3>
+
+<div class="grid verticalLR directionRTL">
+  <div class="firstRowFirstColumn" style="left: 10%; top: 5%;"
+    data-offset-x="9" data-offest-y="10" data-expected-width="90" data-expected-height="200"></div>
+  <div class="secondRowSecondColumn" style="left: -20%; top: -10%;"
+    data-offset-x="78" data-offest-y="75" data-expected-width="60" data-expected-height="150"></div>
+  <div class="thirdRowThirdColumn" style="right: 70%; bottom: 30%;"
+    data-offset-x="129" data-offest-y="120" data-expected-width="30" data-expected-height="100"></div>
+</div>
+
+<h2>Writing Mode vertical-rl</h2>
+
+<h3>Direction LTR</h3>
+
+<div class="grid verticalRL">
+  <div class="firstRowFirstColumn" style="left: 10%; top: 5%;"
+    data-offset-x="219" data-offest-y="10" data-expected-width="90" data-expected-height="200"></div>
+  <div class="secondRowSecondColumn" style="left: -20%; top: -10%;"
+    data-offset-x="138" data-offest-y="75" data-expected-width="60" data-expected-height="150"></div>
+  <div class="thirdRowThirdColumn" style="right: 70%; bottom: 30%;"
+    data-offset-x="99" data-offest-y="120" data-expected-width="30" data-expected-height="100"></div>
+</div>
+
+<h3>Direction RTL</h3>
+
+<div class="grid verticalRL directionRTL">
+  <div class="firstRowFirstColumn" style="left: 10%; top: 5%;"
+    data-offset-x="219" data-offest-y="10" data-expected-width="90" data-expected-height="200"></div>
+  <div class="secondRowSecondColumn" style="left: -20%; top: -10%;"
+    data-offset-x="138" data-offest-y="75" data-expected-width="60" data-expected-height="150"></div>
+  <div class="thirdRowThirdColumn" style="right: 70%; bottom: 30%;"
+    data-offset-x="99" data-offest-y="120" data-expected-width="30" data-expected-height="100"></div>
+</div>
--- a/tests/wpt/web-platform-tests/css/css-grid/grid-items/support/grid.css
+++ b/tests/wpt/web-platform-tests/css/css-grid/grid-items/support/grid.css
@ -68,6 +68,12 @@
  grid-row: 3;
 }

+.thirdRowThirdColumn {
+  background-color: salmon;
+  grid-column: 3;
+  grid-row: 3;
+}
+
 .firstRowThirdColumn {
  background-color: magenta;
  grid-column: 3;
--- a/tests/wpt/web-platform-tests/css/css-grid/grid-model/support/grid.css
+++ b/tests/wpt/web-platform-tests/css/css-grid/grid-model/support/grid.css
@ -68,6 +68,12 @@
  grid-row: 3;
 }

+.thirdRowThirdColumn {
+  background-color: salmon;
+  grid-column: 3;
+  grid-row: 3;
+}
+
 .firstRowThirdColumn {
  background-color: magenta;
  grid-column: 3;
--- a/tests/wpt/web-platform-tests/css/css-properties-values-api/typedom.tentative.html
+++ b/tests/wpt/web-platform-tests/css/css-properties-values-api/typedom.tentative.html
@ -537,4 +537,61 @@ test(function(){
    assert_parsed_type(gen_prop('<length># | fail', 'fail'), '10px, 20px', CSSUnitValue);
 }, 'CSSStyleValue.parse[All] returns list of CSSUnitValues for <length>#');

+// Direct CSSStyleValue objects:
+
+function gen_all_props() {
+    return [
+        gen_prop('*', 'foo'),
+        gen_prop('foo', 'foo'),
+        gen_prop('<angle>', '0deg'),
+        gen_prop('<color>', 'rgb(1, 2, 3)'),
+        gen_prop('<custom-ident>', 'thing'),
+        gen_prop('<image>', 'url(a)'),
+        gen_prop('<integer>', '0'),
+        gen_prop('<length-percentage>', 'calc(10px + 10%)'),
+        gen_prop('<length>', '0px'),
+        gen_prop('<number>', '0.5'),
+        gen_prop('<percentage>', '0%'),
+        gen_prop('<resolution>', '0dpi'),
+        gen_prop('<time>', '0s'),
+        gen_prop('<transform-function>', 'rotateX(0deg)'),
+        gen_prop('<transform-list>', 'rotateX(0deg)'),
+        gen_prop('<url>', 'url(a)')
+    ];
+}
+
+test(function(){
+    let props0 = gen_all_props();
+    let props1 = gen_all_props();
+
+    for (let i = 0; i < props0.length; i++) {
+        let prop0 = props0[i];
+        let prop1 = props1[i];
+
+        // Abuse computedStyleMap to get the initialValue (just to get some
+        // value that will parse for prop0/1's syntax).
+        let initialValue = target.computedStyleMap().get(prop0);
+
+        // We only care about direct CSSStyleValue instances in this test.
+        // Ultimately, in some future version of CSS TypedOM, we may have no
+        // direct CSSStyleValue instances at all, which is fine.
+        if (initialValue.constructor !== CSSStyleValue) {
+            continue;
+        }
+
+        let value = CSSStyleValue.parse(prop0, initialValue.toString());
+
+        // A value parsed for prop0 must be assignable to prop0.
+        target.attributeStyleMap.clear();
+        target.attributeStyleMap.set(prop0, value); // Don't throw.
+
+        // A value parsed for prop0 must not be assignable to prop1, even if
+        // the properties have compatible syntaxes.
+        assert_throws(new TypeError(), () => {
+            target.attributeStyleMap.clear();
+            target.attributeStyleMap.set(prop1, value);
+        });
+    }
+}, 'Direct CSSStyleValue instances are tied to their associated property');
+
 </script>
--- a/tests/wpt/web-platform-tests/css/css-scoping/host-context-specificity-001.html
+++ b/tests/wpt/web-platform-tests/css/css-scoping/host-context-specificity-001.html
@ -0,0 +1,21 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>CSS Test: the selector inside :host-context() affects specificity</title>
+<link rel="help" href="https://drafts.csswg.org/css-scoping/#host-selector">
+<link rel="match" href="reference/green-box.html">
+<p>Test passes if you see a single 100px by 100px green box below.</p>
+<div id="host"></div>
+<script>
+  host.attachShadow({ mode: 'open' }).innerHTML = `
+    <style>
+      :host-context(#host) {
+        width: 100px;
+        height: 100px;
+        background: green;
+      }
+      :host {
+        background: red;
+      }
+    </style>
+  `;
+</script>
--- a/tests/wpt/web-platform-tests/css/css-scoping/host-context-specificity-002.html
+++ b/tests/wpt/web-platform-tests/css/css-scoping/host-context-specificity-002.html
@ -0,0 +1,23 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>CSS Test: :host-context() is accounted for during specificity computation</title>
+<link rel="help" href="https://drafts.csswg.org/css-scoping/#host-selector">
+<link rel="match" href="reference/green-box.html">
+<p>Test passes if you see a single 100px by 100px green box below.</p>
+<div id="host"></div>
+<script>
+  host.attachShadow({ mode: 'open' }).innerHTML = `
+    <style>
+      .foo span {
+        display: block;
+        width: 100px;
+        height: 100px;
+        background: red;
+      }
+      :host-context(*) span {
+        background: green;
+      }
+    </style>
+    <div class="foo"><span></span></div>
+  `;
+</script>
--- a/tests/wpt/web-platform-tests/css/css-scoping/host-context-specificity-003.html
+++ b/tests/wpt/web-platform-tests/css/css-scoping/host-context-specificity-003.html
@ -0,0 +1,22 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>CSS Test: the :host-context() selector affects specificity</title>
+<link rel="help" href="https://drafts.csswg.org/css-scoping/#host-selector">
+<link rel="match" href="reference/green-box.html">
+<p>Test passes if you see a single 100px by 100px green box below.</p>
+<div id="host"></div>
+<script>
+  host.attachShadow({ mode: 'open' }).innerHTML = `
+    <style>
+      :host-context(*) div {
+        width: 100px;
+        height: 100px;
+        background: green;
+      }
+      div {
+        background: red;
+      }
+    </style>
+    <div></div>
+  `;
+</script>
--- a/tests/wpt/web-platform-tests/css/css-scoping/host-specificity-003.html
+++ b/tests/wpt/web-platform-tests/css/css-scoping/host-specificity-003.html
@ -0,0 +1,26 @@
+<!doctype html>
+<meta charset="utf-8">
+<title>CSS Test: the :host() selector affects specificity</title>
+<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
+<link rel="author" title="Mozilla" href="https://mozilla.org">
+<link rel="help" href="https://drafts.csswg.org/css-scoping/#host-selector">
+<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/1915">
+<link rel="help" href="https://bugzil.la/1454165">
+<link rel="match" href="reference/green-box.html">
+<p>Test passes if you see a single 100px by 100px green box below.</p>
+<div id="host"></div>
+<script>
+  host.attachShadow({ mode: 'open' }).innerHTML = `
+    <style>
+      :host(*) div {
+        width: 100px;
+        height: 100px;
+        background: green;
+      }
+      div {
+        background: red;
+      }
+    </style>
+    <div></div>
+  `;
+</script>
--- a/tests/wpt/web-platform-tests/css/css-scroll-anchoring/text-anchor-in-vertical-rl.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-anchoring/text-anchor-in-vertical-rl.html
@ -0,0 +1,30 @@
+<!DOCTYPE html>
+<link rel="author" title="Morten Stenshorne" href="mstensho@chromium.org">
+<link rel="help" href="https://drafts.csswg.org/css-scroll-anchoring/">
+
+<p>There should be no red below.</p>
+<div id="container" style="writing-mode:vertical-rl; overflow:auto; width:300px; height:300px;">
+  <div style="width:300px; background:red;"></div>
+  <div style="width:400px; font-size:16px; line-height:25px;">
+    <span id="displayMe" style="color:red; display:none;">
+      FAIL<br>FAIL<br>FAIL<br>FAIL<br>
+    </span>
+    line<br>
+  </div>
+  <div id="displayMeToo" style="display:none; width:300px; background:red;"></div>
+</div>
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+  test(()=> {
+      var container = document.getElementById("container");
+      var displayMe = document.getElementById("displayMe");
+      var displayMeToo = document.getElementById("displayMeToo");
+      // Scroll the text container into view.
+      container.scrollLeft = 100;
+      displayMe.style.display = "inline";
+      displayMeToo.style.display = "block";
+      assert_equals(container.scrollLeft, 300);
+  }, "Line at edge of scrollport shouldn't jump visually when content is inserted before");
+</script>
--- a/tests/wpt/web-platform-tests/css/css-text/text-indent/reference/text-indent-percentage-002-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-text/text-indent/reference/text-indent-percentage-002-ref.html
@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html lang=en>
+<meta charset="utf-8">
+<title>CSS Text Test reference</title>
+<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
+<style>
+div { padding-left: 50px; }
+</style>
+
+<p>Test passes if there is a single black X below and no red.
+<div>X</div>
--- a/tests/wpt/web-platform-tests/css/css-text/text-indent/text-indent-percentage-002.html
+++ b/tests/wpt/web-platform-tests/css/css-text/text-indent/text-indent-percentage-002.html
@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html lang=en>
+<meta charset="utf-8">
+<title>CSS Text Test: text-indent percentage resolution basis</title>
+<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
+<link rel="help" href="https://drafts.csswg.org/css-text-3/#text-indent-property">
+<meta name="flags" content="">
+<link rel="match" href="reference/text-indent-percentage-002-ref.html">
+<meta name="assert" content="Percentages in text-indent refer to width of the element's content box">
+<style>
+section { position: absolute; }
+section, div {
+  border-right: 10px solid white;
+  margin-right: 10px;
+  padding-right: 10px;
+}
+div {
+  box-sizing: border-box;
+  width: 120px;
+}
+.test div { text-indent: 50%; color: red; }
+.ref div { text-indent: 50px; }
+</style>
+
+<p>Test passes if there is a single black X below and no red.
+<section class=test><div>X</div></section>
+<section class=ref><div>X</div></section>
--- a/tests/wpt/web-platform-tests/css/css-text/text-indent/text-indent-percentage-003.html
+++ b/tests/wpt/web-platform-tests/css/css-text/text-indent/text-indent-percentage-003.html
@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html lang=en>
+<meta charset="utf-8">
+<title>CSS Text Test: text-indent percentage resolution basis</title>
+<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
+<link rel="help" href="https://drafts.csswg.org/css-text-3/#text-indent-property">
+<meta name="flags" content="">
+<link rel="match" href="reference/text-indent-percentage-002-ref.html">
+<meta name="assert" content="Percentages in text-indent refer to width of the element's content box">
+<style>
+section { position: absolute; }
+section, div {
+  border-right: 10px solid white;
+  margin-right: 10px;
+  padding-right: 10px;
+}
+div {
+  box-sizing: border-box;
+  width: 120px;
+}
+.test div { text-indent: 50%; color: red; overflow: hidden; } /* overflow:hidden should not make any difference, but it does in some browsers */
+.ref div { text-indent: 50px; }
+</style>
+
+<p>Test passes if there is a single black X below and no red.
+<section class=test><div>X</div></section>
+<section class=ref><div>X</div></section>
--- a/tests/wpt/web-platform-tests/css/css-text/text-indent/text-indent-percentage-004.html
+++ b/tests/wpt/web-platform-tests/css/css-text/text-indent/text-indent-percentage-004.html
@ -0,0 +1,27 @@
+<!DOCTYPE html>
+<html lang=en>
+<meta charset="utf-8">
+<title>CSS Text Test: text-indent percentage resolution basis, in a calc expressiong</title>
+<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
+<link rel="help" href="https://drafts.csswg.org/css-text-3/#text-indent-property">
+<meta name="flags" content="">
+<link rel="match" href="reference/text-indent-percentage-002-ref.html">
+<meta name="assert" content="Percentages in text-indent refer to width of the element's content box, when used in a calc expression">
+<style>
+section { position: absolute; }
+section, div {
+  border-right: 10px solid white;
+  margin-right: 10px;
+  padding-right: 10px;
+}
+div {
+  box-sizing: border-box;
+  width: 120px;
+}
+.test div { text-indent: calc(25px + 25%); color: red; }
+.ref div { text-indent: 50px; }
+</style>
+
+<p>Test passes if there is a single black X below and no red.
+<section class=test><div>X</div></section>
+<section class=ref><div>X</div></section>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-000.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-000.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0000</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0000, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0000" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-001.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-001.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0001</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0001, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0001" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-002.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-002.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0002</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0002, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0002" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-003.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-003.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0003</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0003, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0003" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-004.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-004.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0004</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0004, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0004" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-005.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-005.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0005</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0005, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0005" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-006.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-006.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0006</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0006, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0006" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-007.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-007.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0007</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0007, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0007" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-008.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-008.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0008</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0008, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0008" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-00B.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-00B.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+000B</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+000B, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\000B" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-00D.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-00D.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+000D</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+000D, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\000D" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-00E.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-00E.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+000E</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+000E, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\000E" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-00F.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-00F.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+000F</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+000F, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\000F" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-010.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-010.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0010</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0010, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0010" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-011.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-011.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0011</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0011, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0011" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-012.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-012.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0012</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0012, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0012" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-013.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-013.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0013</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0013, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0013" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-014.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-014.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0014</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0014, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0014" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-015.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-015.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0015</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0015, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0015" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-016.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-016.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0016</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0016, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0016" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-017.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-017.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0017</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0017, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0017" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-018.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-018.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0018</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0018, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0018" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-019.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-019.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0019</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0019, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0019" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-01A.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-01A.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+001A</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+001A, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\001A" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-01B.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-01B.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+001B</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+001B, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\001B" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-01C.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-01C.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+001C</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+001C, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\001C" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-01D.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-01D.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+001D</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+001D, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\001D" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-01E.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-01E.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+001E</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+001E, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\001E" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-01F.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-01F.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+001F</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+001F, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\001F" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-07F.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-07F.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+007F</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+007F, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\007F" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-080.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-080.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0080</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0080, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0080" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-081.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-081.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0081</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0081, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0081" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-082.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-082.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0082</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0082, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0082" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-083.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-083.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0083</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0083, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0083" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-084.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-084.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0084</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0084, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0084" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-085.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-085.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0085</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0085, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0085" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-086.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-086.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0086</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0086, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0086" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-087.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-087.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0087</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0087, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0087" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-088.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-088.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0088</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0088, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0088" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-089.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-089.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0089</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0089, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0089" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-08A.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-08A.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+008A</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+008A, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\008A" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-08B.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-08B.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+008B</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+008B, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\008B" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-08C.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-08C.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+008C</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+008C, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\008C" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-08D.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-08D.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+008D</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+008D, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\008D" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-08E.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-08E.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+008E</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+008E, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\008E" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-08F.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-08F.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+008F</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+008F, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\008F" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-090.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-090.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0090</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0090, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0090" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-091.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-091.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0091</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0091, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0091" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-092.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-092.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0092</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0092, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0092" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-093.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-093.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0093</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0093, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0093" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-094.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-094.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0094</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0094, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0094" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-095.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-095.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0095</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0095, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0095" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-096.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-096.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0096</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0096, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0096" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-097.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-097.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0097</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0097, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0097" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-098.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-098.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0098</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0098, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0098" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-099.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-099.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+0099</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+0099, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\0099" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-09A.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-09A.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+009A</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+009A, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\009A" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-09B.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-09B.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+009B</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+009B, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\009B" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-09C.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-09C.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+009C</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+009C, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\009C" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-09D.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-09D.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+009D</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+009D, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\009D" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-09E.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-09E.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+009E</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+009E, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\009E" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-09F.html
+++ b/tests/wpt/web-platform-tests/css/css-text/white-space/control-chars-09F.html
@ -0,0 +1,18 @@
+<!doctype html>
+<meta charset=utf-8>
+<title>Control charcters must be visible: U+009F</title>
+<link rel=author title="Florian Rivoal" href="https://florian.rivoal.net">
+<link rel=help href="https://drafts.csswg.org/css-text-3/#white-space-processing">
+<link rel=mismatch href="reference/control-chars-000-ref.html">
+<meta name=flags content="">
+<meta name=assert content="U+009F, which is in the unicode category CC, must be visible">
+<style>
+div {
+  font-size: 4em;
+}
+div::after { content: "\009F" } /* Injecting via CSS, to avoid any mangling by the html parser */
+</style>
+
+<p>Test passes if there is a visible character below.
+
+<div></div>
--- a/Show more
+++ b/Show more