AJAX reloading of stylesheets does not work with HtmlUnit
---------------------------------------------------------
Key: WICKET-4362
URL: https://issues.apache.org/jira/browse/WICKET-4362
Project: Wicket
Issue Type: Bug
Reporter: Andreas Kappler
Priority: Minor
There is an issue with dynamically loading stylesheets when using HtmlUnit.
In wicket-ajax.js:1624 the following code is used to detect when the stylesheet
has loaded:
// cross browser way to check when the css is loaded
// taked from
http://www.backalleycoder.com/2011/03/20/link-tag-css-stylesheet-load-event/
// this makes a second GET request to the css but it gets it either from the
cache or
// downloads just the first several bytes and realizes that the MIME is wrong
and ignores the rest
var img = document.createElement('img');
var notifyCalled = false;
img.onerror = function() {
if (!notifyCalled) {
notifyCalled = true;
notify();
}
}
img.src = css.href;
if (img.complete) {
if (!notifyCalled) {
notifyCalled = true;
notify();
}
}
The trick with the img tag does not work in HtmlUnit and notify will never be
called which results in the AJAX response not being parsed successfully.
This may well be a HtmlUnit problem but I put this on this tracker in case
somebody has another solution for the problem that could make it in the next
wicket maintenance release. HtmlUnit is somewhat slower with its release plan.
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