I'm getting even more convinced that this is an issue with FF3 & jQuery. Interestingly, it only affects local JS files, which are inserted as text into the head of the document between script tags.
Remote files, which are loaded using <script src=...> and monitored using onload / onreadystate execute fine. Why is it that local files are not loaded using the src attribute of the script tag too? Mark. On Sep 16, 11:57 am, robert_shipley <[EMAIL PROTECTED]> wrote: > Posted by Rob on Behalf of Mark... > > I've been doing a little investigation into this (I'm a colleague of > Rob's) and we are still experiencing the issue in Firefox 3. I'm > afraid it's very difficult for me to produce an example of this as we > are using quite a complex set of getScript calls in our website and > can't make this available to the outside world. I've managed to > generate a replica of the page here:http://www.tcc-net.com/jquery-getscript/ > > Here are my findings todate: > > - We are calling getScript to retrieve local javascript files. > - As soon as the file is loaded, we attempt to execute a function > within the script. > > I put a few console.log messages into the files (Firebug uses > console.log for debugging) to output messages at certain points. The > key ones were a message at the end of the file being retrieved ("end > of tablesorter") with getScript and one in the callback ("would > trigger") which is triggered on (apparent) completion of the load. > > Most of the time, these appear in the console in the correct order > ("end of tablesorter" => "would trigger"). Occasionally, however, > they appear the alternate way around and this is when the error > (myMethod() is not a valid function, or words to those effect) is > seen. > > I therefore deduce that the callback is being triggered before the > execution of the javascript is complete (even though it is loaded, it > has not executed fully). It is down to a race as to whether the > callback is triggered first or the script completes execution. > > Looking at the jQuery code, and I am claiming no expertise here so I > may well be wrong, it seems that the "globalEval" function is used to > execute a local script once downloaded. I do not see anywhere in this > function, however, where there are any checks on whether the script > has fully executed. > > It might be that in IE6, IE7, FF < 3 the execution of the javascript > is paused until the inserted script element has been executed, and in > FF3, no such pause occurs. I am hypothesising here though, and really > don't have enough information on how this method of script loading > works internally. > > I'm posting this information here more to see if it triggers any > thoughts in those more experienced jQuery contributors. In the > meantime, I will continue my own investigations. > > Cheers, > > Mark.
