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Theme developers like to deregister wordpress jquery and load jquery from google instead.

I've been told it is for speed and I agree.

This usually is not a problem for me since I always use jQuery instead of $.

But I do see some plugins try to use $, well, it generates javascript error and also makes my plugin not working. As a result, clients blame on innocent me.

Sometimes my js code depends on the version of wordpress jquery but theme developers tend to load a specific version from google.

Even though the theme is updated, they may not update the jquery version, not to mention an old theme.

What should I do in such situations?

Actually, I'm thinking about, maybe I should use Zepto.js instead and include it in my js code.

p.s. good news, wordpress 3.6 doesn't allow deregister jquery in its backend.

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Did not know that about wp 3.6 :). For interested devs, here's the trac ticket core.trac.wordpress.org/ticket/22896 –  Stephen Harris Aug 5 '13 at 8:21

1 Answer 1

up vote 6 down vote accepted

Any Theme developer that dequeues core-bundled jQuery in order to enqueue some other version - any other version, bundled, CDN, etc. - is _doing_it_wrong(), period. Core, active Theme, and active Plugins all rely on a known version of jQuery being available.

What to do about it?

  1. Tell the Theme developer that he's _doing_it_wrong(), and ask for a fix.
  2. Tell your Plugin users to use a Theme hosted in the official WordPress Theme directory, since every Theme hosted there is prohibited from dequeueing core-bundled jQuery
  3. Instruct your Plugin users how to override the Theme's jQuery override, via a site functionality Plugin that dequeues the Theme's custom jQuery, and re-enqueues core-bundled jQuery
  4. Instruct your Plugin users how to patch the Theme's incorrect jQuery implementation, by adding no-conflict wrappers
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no offense. It's not practical. Maybe I should try to convince wordpress dev core team? hehe –  Jesse Aug 5 '13 at 4:34
@Jesse - In my experience users accept its something the theme developer 'doing something wrong'. I typically tell them how to fix it, but also advise that they contact the theme developer. –  Stephen Harris Aug 5 '13 at 8:17
@StephenHarris I'm hired by affiliaters and they sell the plugin to newbies who are very scared to touch the code. So, I have to fix it one by one and yes, I should have let users, rather than me, report to theme developer. My report was ignored by a "big-time" affiliate theme and didn't thought of reporting issue ever since... –  Jesse Aug 5 '13 at 9:33
@Jesse convince the WordPress core dev team... of what, exactly? :) If your users don't want to touch code, just write the Theme fixes directly into the Plugin. Then, you can just update the Plugin each time you find a new Theme that you need to "fix". –  Chip Bennett Aug 5 '13 at 14:03
@ChipBennett given that theme developers are _doing_it_wrong() and wp 3.6 also disallows deregistering critical third party scripts in backend, I think there is a chance that can talk them down to do the same thing in the front-end too. maybe I'm just dreaming. :] –  Jesse Aug 5 '13 at 14:12

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