Closed
Bug 287894
Opened 19 years ago
Closed 19 years ago
window.onload event handler fires at the wrong time
Categories
(Core :: JavaScript Engine, defect)
Tracking
()
RESOLVED
INVALID
People
(Reporter: spaligo, Unassigned)
Details
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2
If the event handler is assigned in the body tag (<body onload="">) it works
just fine. If you assign the handler in a script in the head tag (in Firefox),
the event fires as it is loaded rather than when the page is done. See the code
below.
Reproducible: Always
Steps to Reproduce:
//event triggers
document.onload = HideJSError();
//functions
function HideJSError()
{
if (document.getElementById("jserror"))
{document.getElementById("jserror").style.display = "none";}
}
Actual Results:
The code in the IF statement doesn't run because the element couldn't be found
(because the body hasn't been loaded yet).
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Comment 1•19 years ago
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First, this isn't a JavaScript Engine issue but is instead probably DOM 0. The JavaScript Engine deals solely with issues related to the implementation of the JavaScript language and is independent of the use of the language in the browser. Please read up on the products and components in Bugzilla to understand the proper location for filing bugs. Second, in document.onload = HideJSError() you are not assigning a reference to the function you wish to use as the onload handler but are instead calling the function and assigning its return value to document.onload. Third, document.onload doesn't work the way you think. Use window.onload instead. For example, window.onload = HideJSError; Invalid.
Status: UNCONFIRMED → RESOLVED
Closed: 19 years ago
Resolution: --- → INVALID
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Description
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