Title: Javascript error
Last modified: April 21, 2018

---

# Javascript error

 *  Resolved [scerbj](https://wordpress.org/support/users/scerbj/)
 * (@scerbj)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/javascript-error-139/)
 * Ever since updating to v3.0.0 I get the following error:
 * “A JavaScript problem on the page is preventing Query Monitor from working correctly.
   jQuery may have been blocked from loading.”
 * Do you have any guidance on how to troubleshoot this? Love the plugin. Thanks!

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [royeproductions](https://wordpress.org/support/users/royeproductions/)
 * (@royeproductions)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/javascript-error-139/#post-10207608)
 * I have this same exact issue.
 *  [perryb](https://wordpress.org/support/users/perryb/)
 * (@perryb)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/javascript-error-139/#post-10213328)
 * I have discovered a similar error. The effect seems to be that it stops drop 
   downs working within WP admin.
 * Here’s a readout of the error I get in Firefosx dev tools:
 *     ```
       NS_ERROR_FILE_CORRUPTED: 
       query-monitor.js:211
       <anonymous>
       http://mysite/wp-content/plugins/query-monitor/assets/query-monitor.js:211:16
       each
       http://mysite/wp-admin/load-scripts.php:2:2879
       each
       http://mysite/wp-admin/load-scripts.php:2:844
       <anonymous>
       http://mysite/wp-content/plugins/query-monitor/assets/query-monitor.js:209:3
       i
       http://mysite/wp-admin/load-scripts.php:2:27444
       fireWith
       http://mysite/wp-admin/load-scripts.php:2:28213
       ready
       http://mysite/wp-admin/load-scripts.php:2:30004
       K
       http://mysite/wp-admin/load-scripts.php:2:30366
       ```
   
 *  Plugin Author [John Blackbourn](https://wordpress.org/support/users/johnbillion/)
 * (@johnbillion)
 * WordPress Core Developer
 * [8 years ago](https://wordpress.org/support/topic/javascript-error-139/#post-10309810)
 * This should be fixed in 3.0.1

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Javascript error’ is closed to new replies.

 * ![](https://ps.w.org/query-monitor/assets/icon.svg?rev=2994095)
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## Tags

 * [javascript error](https://wordpress.org/support/topic-tag/javascript-error/)

 * 3 replies
 * 4 participants
 * Last reply from: [John Blackbourn](https://wordpress.org/support/users/johnbillion/)
 * Last activity: [8 years ago](https://wordpress.org/support/topic/javascript-error-139/#post-10309810)
 * Status: resolved