[Webkit-unassigned] [Bug 148392] New: Page does not update when <link> media attribute changes to no longer apply to page

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=148392

            Bug ID: 148392
           Summary: Page does not update when <link> media attribute
                    changes to no longer apply to page
    Classification: Unclassified
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: joepeck at webkit.org
                CC: benjamin at webkit.org, simon.fraser at apple.com

* SUMMARY
Page does not update when <link> media attribute changes to no longer apply to page.

* TEST
<link id="link" rel="stylesheet" href="data:text/css,body{color:red}" media="print">
<p>Text To Change Color</p>
<button id="button">Then Click me</button>
<script>
document.getElementById("button").addEventListener("click", function() {
    var link = document.getElementById("link");
    var currentMedia = link.media;
    var newMedia = currentMedia === "screen" ? "print" : "screen";
    console.log(currentMedia + " => " + newMedia);
    link.setAttribute("media", newMedia);
});
</script>

* STEPS TO REPRODUCE
1. Load test
2. Click the button (note the text changes from black => red)
3. Click the button again
  => text does not change from red => black, but it should

* NOTES
- Chrome and Firefox both behave as expected with this test case

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