Title: JavaScript problems since upgrade: Edit Post page Last modified: August 20, 2016 --- # JavaScript problems since upgrade: Edit Post page * [miri](https://wordpress.org/support/users/miri/) * (@miri) * [13 years, 6 months ago](https://wordpress.org/support/topic/javascript-problems-since-upgrade/) * I upgraded from 3.4.2 to 3.5 and am having JavaScript problems. I was able to alleviate some by disabled one old plugin (Ad Sense Manager), but problems on the widgets page and the edit post page continues. When I click on a post to edit, there’s nothing in the tags box even though tags show on the post list- view page. When I view source, I see two separate tags form fields – the first one is not displaying: * ```

Add or remove tags

Add New Tag

Separate tags with commas

``` * So, it seems that js isn’t working, but it’s showing the fields built to require js. * I read through [this thread](http://wordpress.org/support/topic/troubleshooting-wordpress-35-master-list?replies=4), but do not have the plug-ins or mods mentioned. I’ve reverted to the default them and disabled all plug-ins, but the problem still persists. Viewing 3 replies - 1 through 3 (of 3 total) * [Mark Ratledge](https://wordpress.org/support/users/songdogtech/) * (@songdogtech) * [13 years, 6 months ago](https://wordpress.org/support/topic/javascript-problems-since-upgrade/#post-3268817) * See [http://codex.wordpress.org/Using_Your_Browser_to_Diagnose_JavaScript_Errors](http://codex.wordpress.org/Using_Your_Browser_to_Diagnose_JavaScript_Errors) to find the errors and what might be causing them. * Use [Firebug](http://getfirebug.com/) with Firefox, or use the developer tools in [Chrome](https://developers.google.com/chrome-developer-tools/docs/overview) or [Safari](http://developer.apple.com/library/safari/#documentation/appleapplications/Conceptual/Safari_Developer_Guide/2SafariDeveloperTools/SafariDeveloperTools.html) or [IE](http://msdn.microsoft.com/en-us/library/ie/gg589507(v=vs.85).aspx) to see loaded javascripts and errors. * Thread Starter [miri](https://wordpress.org/support/users/miri/) * (@miri) * [13 years, 6 months ago](https://wordpress.org/support/topic/javascript-problems-since-upgrade/#post-3268822) * Timestamp: 12/12/2012 9:48:31 PM Error: ReferenceError: Backbone is not defined Source File: [http://s0.wp.com/wp-content/mu-plugins/notes/notes-rest-common.js?ver=2.0.2-201250](http://s0.wp.com/wp-content/mu-plugins/notes/notes-rest-common.js?ver=2.0.2-201250) Line: 30 * Timestamp: 12/12/2012 9:48:31 PM Error: ReferenceError: Backbone is not defined Source File: [http://s0.wp.com/wp-content/mu-plugins/notes/admin-bar-rest.js?ver=2.0.2-201250](http://s0.wp.com/wp-content/mu-plugins/notes/admin-bar-rest.js?ver=2.0.2-201250) Line: 1 * Timestamp: 12/12/2012 9:48:31 PM Error: TypeError: wpntView is not a constructor Source File: [http://s0.wp.com/wp-content/mu-plugins/notes/admin-bar-rest.js?ver=2.0.2-201250](http://s0.wp.com/wp-content/mu-plugins/notes/admin-bar-rest.js?ver=2.0.2-201250) Line: 1 * [mohdubaiddj](https://wordpress.org/support/users/mohdubaiddj/) * (@mohdubaiddj) * [13 years, 6 months ago](https://wordpress.org/support/topic/javascript-problems-since-upgrade/#post-3268847) * I know I am supposed to create a new thread, rather than write in here, but somehow I seem to face the same issue mire is facing. When i tried to debug using firebug, i’m stuck here. * Error: TypeError: e is undefined Source File: [http://www.techbuzzers.com/wp-includes/js/tinymce/tiny_mce.js?ver=358-23156](http://www.techbuzzers.com/wp-includes/js/tinymce/tiny_mce.js?ver=358-23156) Line: 1 * Error: ReferenceError: Backbone is not defined Source File: [http://s0.wp.com/wp-content/mu-plugins/notes/notes-rest-common.js?ver=2.0.4-201250](http://s0.wp.com/wp-content/mu-plugins/notes/notes-rest-common.js?ver=2.0.4-201250) Line: 30 * Error: ReferenceError: Backbone is not defined [http://s0.wp.com/wp-content/mu-plugins/notes/admin-bar-rest.js?ver=2.0.4-201250](http://s0.wp.com/wp-content/mu-plugins/notes/admin-bar-rest.js?ver=2.0.4-201250) Line: 1 * Error: TypeError:wpntView is not a constructor Source File: [http://www.techbuzzers.com/wp-includes/js/tinymce/tiny_mce.js?ver=358-23156](http://www.techbuzzers.com/wp-includes/js/tinymce/tiny_mce.js?ver=358-23156) Line: 1 * Niether am I able to go to ‘Text’ mode in the editor, nor attach any links.. I’m clueless.. Tried removing all plugins, switched back to default theme, manually upload wp3.5 files again via ftp, removed all htaacess and I’m still here. Any help? * Thanks, Ubaid Viewing 3 replies - 1 through 3 (of 3 total) The topic ‘JavaScript problems since upgrade: Edit Post page’ is closed to new replies. ## Tags * [edit-post](https://wordpress.org/support/topic-tag/edit-post/) * [javascript](https://wordpress.org/support/topic-tag/javascript/) * [upgrade](https://wordpress.org/support/topic-tag/upgrade/) * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) * 3 replies * 3 participants * Last reply from: [mohdubaiddj](https://wordpress.org/support/users/mohdubaiddj/) * Last activity: [13 years, 6 months ago](https://wordpress.org/support/topic/javascript-problems-since-upgrade/#post-3268847) * Status: not resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics