[Webkit-unassigned] [Bug 249637] New: browserbench.org: illegal invocation of HTMLImageElement.prototype.srcset

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=249637

            Bug ID: 249637
           Summary: browserbench.org: illegal invocation of
                    HTMLImageElement.prototype.srcset
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Website
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: tophf at gmx.com
                CC: jond at apple.com

1. open browserbench.org
2. check the console

Expected: no errors
Observed: "Uncaught TypeError: Illegal invocation"

The cause is this problematic code in index.html added five years ago in bug 172049:

    if (!HTMLImageElement.prototype.srcset) {

Suggesting a possible fix:

    if (!('srcset' in HTMLImageElement.prototype)) {

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