Auto merge of #11913 - jdm:stylesheet-error, r=Ms2ger

Avoid stalled pages containing unreachable stylesheets

This hits some of the pages in the performance testsuite, and leads to a poor user experience since the document load event is never dispatched and the page never finishes parsing.

---
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #11535 (github issue number if applicable).
- [X] There are tests for these changes OR

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This commit is contained in:
bors-servo 2016-06-29 11:42:40 -05:00 committed by GitHub
commit 55ab7a8b12
2 changed files with 59 additions and 41 deletions

View file

@ -7,17 +7,32 @@
<div id="log"></div>
<div id="test">
<script>
//var t404 = async_test("Should get an error event for a 404 error.")
//t404.step(function() {
// var elt = document.createElement("link");
// elt.onerror = t404.step_func(function() {
// assert_true(true, "Got error event for 404 error.")
// t404.done()
// })
// elt.rel = "stylesheet";
// elt.href = 404 error;
// document.getElementsByTagName("head")[0].appendChild(elt);
//})
var t404 = async_test("Should get an error event for a 404 error.")
t404.step(function() {
var elt = document.createElement("link");
elt.onerror = t404.step_func(function() {
assert_true(true, "Got error event for 404 error.")
t404.step_timeout(function() { t404.done() }, 0);
})
elt.onload = t404.unreached_func("load event should not be fired");
elt.rel = "stylesheet";
elt.href = "nonexistent_stylesheet.css";
document.getElementsByTagName("head")[0].appendChild(elt);
})
var tUnsupported = async_test("Should get an error event for an unsupported URL.")
tUnsupported.step(function() {
var elt = document.createElement("link");
elt.onerror = tUnsupported.step_func(function() {
assert_true(true, "Got error event for unsupported URL.")
tUnsupported.step_timeout(function() { tUnsupported.done() }, 0);
})
elt.onload = tUnsupported.unreached_func("load event should not be fired");
elt.rel = "stylesheet";
elt.href = "nonexistent:stylesheet.css";
document.getElementsByTagName("head")[0].appendChild(elt);
})
var tText = async_test("Should get an error event for a text/plain response.")
tText.step(function() {
var elt = document.createElement("link");