Title: Uncaught TypeError:
Last modified: December 4, 2016

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# Uncaught TypeError:

 *  [Oliver Nielsen](https://wordpress.org/support/users/oliver-nielsen/)
 * (@oliver-nielsen)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/)
 * Hi
    I get this error, do this plugin need an update?
 * Uncaught TypeError: a.target.className.indexOf is not a function
    Oliver

Viewing 11 replies - 1 through 11 (of 11 total)

 *  Plugin Contributor [Max Bond](https://wordpress.org/support/users/max-bond/)
 * (@max-bond)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/#post-8516659)
 * I don’t know…
    Need more info
 *  Thread Starter [Oliver Nielsen](https://wordpress.org/support/users/oliver-nielsen/)
 * (@oliver-nielsen)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/#post-8521458)
 * Hi Max
    I get this error shown in chrome.js error log : Uncaught TypeError: a.
   target.className.indexOf is not a function.
 * And end text says:
    jQuery is not loaded!”):console.log(“q2w3_sidebar_options
   not found!”);
 * I think you can see this info in website that uses your plugin?
 * Oliver
 *  Plugin Contributor [Max Bond](https://wordpress.org/support/users/max-bond/)
 * (@max-bond)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/#post-8524252)
 * Well… I need to see this error on your site. Can you provide a link?
 *  Thread Starter [Oliver Nielsen](https://wordpress.org/support/users/oliver-nielsen/)
 * (@oliver-nielsen)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/#post-8525634)
 * I do not know if you are able to see the error on our site, since it is autoptimized,
   but you are welcome to look.
    Link : [http://minmadopskrift.dk/dessert/aeroeske-pandekager.html](http://minmadopskrift.dk/dessert/aeroeske-pandekager.html)
   Oliver
 *  [Frank Goossens](https://wordpress.org/support/users/futtta/)
 * (@futtta)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/#post-8525768)
 * pro-top; add `?ao_noptimize=1` to the URL to see the page with AO disabled 🙂
 *  Plugin Contributor [Max Bond](https://wordpress.org/support/users/max-bond/)
 * (@max-bond)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/#post-8526332)
 * Yes, I see the errors, but I cannot understand the source of the problem.
    And
   I am surprised that the plugin is still working!..
 * Let’s try to disable MutationObserver (Appaearance -> Fixed Widget Options)!
 *  Thread Starter [Oliver Nielsen](https://wordpress.org/support/users/oliver-nielsen/)
 * (@oliver-nielsen)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/#post-8526382)
 * Thanks Frank !
 * Done Max, Please check
 *  Plugin Contributor [Max Bond](https://wordpress.org/support/users/max-bond/)
 * (@max-bond)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/#post-8526471)
 * I don’t see the change. Probably you didn’t clear W3TC page cache
    -  This reply was modified 9 years, 6 months ago by [Max Bond](https://wordpress.org/support/users/max-bond/).
 *  Thread Starter [Oliver Nielsen](https://wordpress.org/support/users/oliver-nielsen/)
 * (@oliver-nielsen)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/#post-8526548)
 * I have done this. All caches cleared Max! I see the changes!
    Please try once
   again !
    -  This reply was modified 9 years, 6 months ago by [Oliver Nielsen](https://wordpress.org/support/users/oliver-nielsen/).
 *  Plugin Contributor [Max Bond](https://wordpress.org/support/users/max-bond/)
 * (@max-bond)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/#post-8526659)
 * It’s ok now! I don’t see the errors
 *  Thread Starter [Oliver Nielsen](https://wordpress.org/support/users/oliver-nielsen/)
 * (@oliver-nielsen)
 * [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/#post-8529576)
 * I see this: Is this error related to q2w3-fixed-widget ?
    JQMIGRATE: Migrate 
   is installed, version 1.4.1 q2w3-fixed-widget.min.js?ver=5.0.4:1 MutationObserver
   not supported or disabled! Enabler.js:116 [ 0.002s] [studio.sdk] loaded.js:3 ‘
   webkitAudioContext’ is deprecated. Please use ‘AudioContext’ instead.e.getDeepKey
   @ loaded.js:3 Enabler.js:116 [ 1.006s] [studio.sdk] Using default ad parameters
   in test environment. Simulating local events.
    -  This reply was modified 9 years, 6 months ago by [Oliver Nielsen](https://wordpress.org/support/users/oliver-nielsen/).

Viewing 11 replies - 1 through 11 (of 11 total)

The topic ‘Uncaught TypeError:’ is closed to new replies.

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 * 11 replies
 * 3 participants
 * Last reply from: [Oliver Nielsen](https://wordpress.org/support/users/oliver-nielsen/)
 * Last activity: [9 years, 6 months ago](https://wordpress.org/support/topic/uncaught-typeerror-13/#post-8529576)
 * Status: not resolved