[Webkit-unassigned] [Bug 207336] New: REGRESSION (iPad OS 13.4 beta): wasm applications crash in Safari

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=207336

            Bug ID: 207336
           Summary: REGRESSION (iPad OS 13.4 beta): wasm applications
                    crash in Safari
           Product: WebKit
           Version: Other
          Hardware: iPhone / iPad
                OS: Unspecified
            Status: NEW
          Severity: Blocker
          Priority: P2
         Component: WebAssembly
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: walter at kognito.com

To reproduce, use iPad OS 13.4 beta 1 (iPad Pro 2018 model was used for this bug report):
1) Navigate with Safari to https://simulations.kognito.com/changetalk
2) Notice the crash immediately when attempting to load the wasm application

I have also hosted a "development build" of the wasm application referenced in 1) at: https://packages.kognito.com/ios_13_4_bug_report/ if you want to see a slightly more detailed error stack.  I'm not sure if that extra information will be relevant or not.

For clarity, this wasm application currently works on iOS 13.3.x, Safari TP 100, and Chrome/Firefox/Edge so it would seem like a specific iOS/ARM problem.  Let me know if I can provide any more information.

-Walter

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