tree c3c1b6cd5053e04f06d03cad8101e50d45e46d26
parent e29a79361ec035871404cd131ff4588f4dd479bf
author Noam Rosenthal <nrosenthal@chromium.org> 1695916820 -0700
committer Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> 1695917853 -0700

LoAF: ensure scripts are added after microtask checkpoint

In most cases this already works, but there are some edge cases
where the microtask queue can be cleared after the script probe
is executed, for example in TrustedTypes.

To rectify, when adding a script, we first wait unti microtasks are
flushed if they aren't already.

Added a test that reproduces it via trusted-types.

Bug: 1485516
Change-Id: I5bb017ffc441471de65aef7c34ad1dcef159157c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4887255
Reviewed-by: Yoav Weiss <yoavweiss@chromium.org>
Commit-Queue: Noam Rosenthal <nrosenthal@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1202659}