[Webkit-unassigned] [Bug 227469] New: JavaScript modules fail to load in XHTML documents

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=227469

            Bug ID: 227469
           Summary: JavaScript modules fail to load in XHTML documents
           Product: WebKit
           Version: Safari 13
          Hardware: All
                OS: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: DOM
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: 00ff0000red at gmail.com

Created attachment 432441

  --> https://bugs.webkit.org/attachment.cgi?id=432441&action=review

Example file that reveals the bug

When attempting to load a JavaScript module file (i.e. <script type="module" src="..." />), in an XHTML document sent with the "application/xhtml+xml" MIME type, the file is not loaded at all. It appears that the XHTML document does not recognize "module" as a supported type?

"nomodule" scripts also fail to load, so web applications are unable to provide a reliable fallback due to this bug.

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