Bug Tracker

Ticket #8298 (closed bug: invalid)

Opened 4 years ago

Last modified 3 years ago

jQuery version 1.5 - ajax - <script> tag timestamp problem

Reported by: norberttamas Owned by:
Priority: low Milestone: 1.next
Component: manipulation Version: 1.5
Keywords: Cc:
Blocking: Blocked by:

Description (last modified by jitter) (diff)

See description here:  http://stackoverflow.com/questions/5022557/jquery-version-1-5-ajax-script-tag-timestamp-problem


[copied from link]
If I load some content with ajax (jQuery) which has a script tag in it, jQuery 1.5 adds the timestamp to the script tag src url. See example bellow.
Example: content what I load with ajax:

<div>text1</div>
<script type="text/javascript" src="/js/abc-xyz.js?r=1.1"></script>

This is the src url from where it loads the script code after I insert the previous content to the page:

.../js/abc-xyz.js?r=1.1&_=1297892228466

Does anybody knows why this happening?
It happens only with jQuery 1.5. It doesn't happen with jQuery 1.4.4.
\ Code Example:

$.ajax({
    url: content.html,
    type: 'GET',
    data: someDataObject,
    success: function(data) {
        // some code here
    },
    error: function(data) {
        // some code here
    }
});

Thanks.

Change History

comment:1 Changed 4 years ago by jitter

  • Priority changed from undecided to low
  • Resolution set to invalid
  • Status changed from new to closed
  • Component changed from unfiled to manipulation
  • Description modified (diff)

Thanks for taking the time to contribute to the jQuery project by writing a bug report. The next time also please include the actual report and a test case on  http://jsfiddle.net instead of only linking to an external site.

After checking your report and your code samples I come to the conclusion that this isn't a bug. I also made this  test case

jQuery 1.4+ (until 1.5) had a bug which caused the cache option not to default to false for script requests. This bug (see #7578) has been fixed in 1.5 .

Now what you might know or not know is, that jQuery does special-handle script tags when doing DOM manipulations. It filters them out and requests them via ajax. This explains why even a "normal" inline script tag suddenly is requested with additional url parameters.

There are ways to work around this if it has unwanted side effects for you.

  • use $.ajaxSetup({ cache: true }) when appropriate
  • use a  prefilter for script requests and e.g. check for urls where you don't want the random parameter to be added and set cache: true in the prefilter for those
  • in e.g. the success call back handle the script tags yourself by doing something along these lines
    var elems = $(htmlwithscripttags);
    elems.filter("script") //now do whatever with the scripts
    elems.filter(":not(script)").appendTo("body"); //e.g.
    
Last edited 4 years ago by jitter (previous) (diff)
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