Ouch. Last week, several alert SPServices users reported issues with jQuery 1.9.0. (See: SPServices Compatibility Issues with the Minified Version of jQuery 1.9.0) It turned out that the minified version of 1.9.0 had a comment at the end of it that caused any jQuery library which followed it to throw errors.
Today, I had a report of SPServices not working with jQuery 1.9.1, which was released yesterday.
There’s a bug in the jQuery bug tracker called Ajax request not returning responseXML that sums up the issue well. Not everyone uses the .ajax() function in jQuery, but if you use SPServices, you’re using it constantly whether you realize it or not. Since there is no responseXML object returned by 1.9.1, every call to SharePoint’s SOAP Web Services in SPServices will fail.
Needless to say, don’t update to jQuery 1.9.1.
If there’s a bright side in all of this, it’s that the issues with jQuery 1.9.0 and 1.9.1 aren’t issues in SPServices or in the way I’ve coded anything. As I said in a forum earlier today, before I knew about the 1.9.1 bug:
Don’t ever point to ‘latest’. There are frequently changes in new versions that break perfectly fine old code.
While most of the mainstream CDNs provide ways to point to the current version of script libraries, e.g., jQuery.latest.min.js, don’t be tempted. These latest two versions of jQuery would have broken all of the SPServices-based code in your SharePoint installations. Make that a part of your governance: no pointing to ‘latest’ versions of script libraries.
Herre’s hoping that 1.9.2 is a better release.