diff --git a/tests/wpt/metadata/fetch/api/basic/scheme-blob.sub.any.js.ini b/tests/wpt/metadata/fetch/api/basic/scheme-blob.sub.any.js.ini
index 04f3b0fe381..dcb842c4c4c 100644
--- a/tests/wpt/metadata/fetch/api/basic/scheme-blob.sub.any.js.ini
+++ b/tests/wpt/metadata/fetch/api/basic/scheme-blob.sub.any.js.ini
@@ -1,5 +1,44 @@
 [scheme-blob.sub.any.html]
-  expected: CRASH
+  [Fetching URL.createObjectURL(empty_blob) is OK]
+    expected: FAIL
+
+  [Fetching URL.createObjectURL(empty_type_blob) is OK]
+    expected: FAIL
+
+  [Blob content is not sniffed for a content type [image/png\]]
+    expected: FAIL
+
+  [Blob content is not sniffed for a content type [text/xml\]]
+    expected: FAIL
+
+  [Set content type to the empty string for slice with invalid content type]
+    expected: FAIL
+
+  [Set content type to the empty string for slice with no content type ]
+    expected: FAIL
+
+  [Blob.slice should not sniff the content for a content type]
+    expected: FAIL
+
 
 [scheme-blob.sub.any.worker.html]
-  expected: CRASH
+  [Fetching URL.createObjectURL(empty_blob) is OK]
+    expected: FAIL
+
+  [Fetching URL.createObjectURL(empty_type_blob) is OK]
+    expected: FAIL
+
+  [Blob content is not sniffed for a content type [image/png\]]
+    expected: FAIL
+
+  [Blob content is not sniffed for a content type [text/xml\]]
+    expected: FAIL
+
+  [Set content type to the empty string for slice with invalid content type]
+    expected: FAIL
+
+  [Set content type to the empty string for slice with no content type ]
+    expected: FAIL
+
+  [Blob.slice should not sniff the content for a content type]
+    expected: FAIL