same error when using Dojo and/or Google maps. But only on my local environment. Same project on live server works fine.

No JS errors when Firebug extension is disabled…

Bye Chris

I don’t use WordPress but Symfony with jQuery.

desperados

bye

desperados

I develop internet applications for a few clients and in my case i receive the error when setting a global variable

“filter_layer_display = 0;”

as soon as I changed this line to

“var filter_layer_display = 0;”
it worked ok no more error, why it suddenly started happening I have no idea but it must be something to do with dependencies or whatever they are called, in my case mine was a global variable and yours is a class using this. I think it is a firebug error moreso than a JS error

posted to the above Google Group (see my previous comment),
opened an issue on the Firebug Google Code forum,
posted a question into the Mozilla Firefox forum and
contacted the author of tw-sack.js.

… taking a deep breath …

Nothing new so far.

So I did as Sven suggested and replaced the tw-sack.js code, which works fine so far. Let’s wait and see if the error still occurs, and if the SACK functionality is still provided 100%.

The only problem with changing the code manually is that you’d have to change this on every major WordPress upgrade – just like compressing Prototype.

But as Firebug only is made for Firefox, I tried to switch the logic of the createAJAX inner function.
So normally, the javascript function would try to make the xmlhttp object with ActiveXObject (MS Stuff), and when that doesn’t succeed it does it the Mozilla way with XMLHttpRequest.

I changed the order:

if (typeof XMLHttpRequest != “undefined”)
this.xmlhttp = new XMLHttpRequest();

if (! this.xmlhttp) {
try {
this.xmlhttp = new ActiveXObject(“Msxml2.XMLHTTP”);
} catch (e1) {
try {
this.xmlhttp = new ActiveXObject(“Microsoft.XMLHTTP”);
} catch (e2) {
this.xmlhttp = null;
this.failed = true;
}
}
}

Now Firebug doesn’t throw an error any more.