[Webkit-unassigned] [Bug 242270] REGRESSION (March 2022): [ iOS Debug ] fast/encoding/char-after-fast-path-ascii-decoding.html is a flaky failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=242270

Alexey Proskuryakov <ap at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |EasyFix
                 CC|                            |darin at apple.com
          Component|New Bugs                    |Tools / Tests
            Summary|[ iOS Debug ]               |REGRESSION (March 2022): [
                   |fast/encoding/char-after-fa |iOS Debug ]
                   |st-path-ascii-decoding.html |fast/encoding/char-after-fa
                   |is a flaky failure          |st-path-ascii-decoding.html
                   |                            |is a flaky failure

--- Comment #4 from Alexey Proskuryakov <ap at webkit.org> ---
The test fails more frequently than it passes. It became dramatically more flaky a few months ago, in early March 2022.

Looking at the test, it incorrectly assumes that waiting for 500 ms guarantees that a subframe would be loaded. Why didn't we just use onload here? Also, the test doesn't need waitUntilDone/notifyDone, as tests complete after the load event by default.

A more interesting question that we will probably will never be able to answer is why loading a data: iframe takes more than half a second in this scenario.

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