[Webkit-unassigned] [Bug 120502] New: Avoid reparsing an XSLT stylesheet after the first failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=120502

           Summary: Avoid reparsing an XSLT stylesheet after the first
                    failure
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Keywords: BlinkMergeCandidate
          Severity: Normal
          Priority: P2
         Component: XML
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: darin at apple.com, ap at webkit.org, sam at webkit.org,
                    rwlbuis at gmail.com


Merge https://chromium.googlesource.com/chromium/blink/+/1debd636044712388392671a3202ec2e6ad08f17
or come up with a better fix.

I can reproduce the crash on ToT WebKit.

Certain libxslt versions appear to leave the doc in an invalid state when parsing fails. We should cache this result and avoid re-parsing.

(The test cannot be converted to text-only due to its invalid stylesheet).

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