[Webkit-unassigned] [Bug 24898] New: Inline JavaScript block executed before download of external CSS.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Mar 27 14:38:23 PDT 2009


           Summary: Inline JavaScript block executed before download of
                    external CSS.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Windows XP
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: slamm at google.com

WebKit does not wait for CSS before executing JavaScript. I see this problem in
Safari 4 and Chrome 2.

In the example page below, the JavaScript should get values after the external
CSS is applied (e.g. font-size should be 7px and not 23px; stylesheet count
should be 2 and not 1). The WebKit behavior is different from both IE and FF.

Another test is in Steve Souders' UA profiler for CSS and Inline JavaScript:

All browsers are currently failing that test. WebKit could be the first. WebKit
browsers and FF fail for different reasons. FF fails because it blocks. WebKit
browsers fail because the JavaScript is executed before the CSS is downloaded.

This example uses JavaScript to access state that the external CSS changes:

<style>span { font-size: 23px; }</style>
<link type="text/css" rel="stylesheet" href="[css has: #note{font-size: 7px;}
<span id="note">The note.</span>
  var elem = document.getElementById("note")
  var style = document.defaultView.getComputedStyle(elem, null);
  var size = style.getPropertyValue("font-size");
  var num_style_sheets = document.styleSheets.length;
  elem.innerHTML = "<br>font size: " + size + " (expected '7px') +
     "<br>sheet count: " + num_style_sheets + " (expected 2)";

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