Mirko Brodesser

> > You should be able to use `fetch_tests_from_window`, compare for example https://github.com/web-platform-tests/wpt/tree/master/FileAPI/url/resources/fetch-tests.js > > Okay, that's https://searchfox.org/mozilla-central/rev/9bb5d5f55da6cc7163dd93825c25609b769822f9/testing/web-platform/tests/resources/testharness.js#3886-3897 and should work. Since existing tests suffer from the same problem (e.g....

When commenting out https://searchfox.org/mozilla-central/rev/9bb5d5f55da6cc7163dd93825c25609b769822f9/testing/web-platform/tests/resources/testharness.js#4367,4507 the harness throws no exceptions.

For https://searchfox.org/mozilla-central/rev/9bb5d5f55da6cc7163dd93825c25609b769822f9/testing/web-platform/tests/resources/testharness.js#4367 there's a performance-relevant comment at https://searchfox.org/mozilla-central/rev/9bb5d5f55da6cc7163dd93825c25609b769822f9/testing/web-platform/tests/resources/testharness.js#4257-4261. CC @smaug----

> For https://searchfox.org/mozilla-central/rev/9bb5d5f55da6cc7163dd93825c25609b769822f9/testing/web-platform/tests/resources/testharness.js#4367 there's a performance-relevant comment at https://searchfox.org/mozilla-central/rev/9bb5d5f55da6cc7163dd93825c25609b769822f9/testing/web-platform/tests/resources/testharness.js#4257-4261. > > CC @smaug---- According to @smaug---- the performance-comment is presumably still relevant, because using `innerHTML` saves JS wrappers for the...

> I wonder how intrusive it would be to make the WPT helpers trusted type compliant? The alternative is a custom harness for trusted type tests that does what it...

> > I wonder how intrusive it would be to make the WPT helpers trusted type compliant? The alternative is a custom harness for trusted type tests that does what...

> > Since existing tests suffer from the same problem (e.g. #44348), the proper fix would be to either rewrite all of those tests or fix the testharness. The existing...

> http://wpt.live/html/dom/reflection-text.html has over 10000 It executes in a few seconds though.

> The time to build the results table (with this patch) for html/dom/reflection-text.text (with indeed >10k entries) took ~800ms (my machine; current version of Chrome). That was the total build...

@jgraham could you also PTAL at the corresponding testharness patch. Especially at https://chromium-review.googlesource.com/c/chromium/src/+/5290877/comment/b3ec4e27_c7bdddba/.