Title: autoptimize fallback js error
Last modified: June 3, 2020

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# autoptimize fallback js error

 *  [sayantansdas](https://wordpress.org/support/users/sayantansdas/)
 * (@sayantansdas)
 * [6 years ago](https://wordpress.org/support/topic/autoptimize-fallback-js-error/)
 * Hi team,
 * i’m getting the following error on the browser console . any idea what is causing
   this issue?
 *     ```
       autoptimize_fallback.js:1180 Uncaught ReferenceError: ElementorProFrontendConfig is not defined
           at t.value (autoptimize_fallback.js:1180)
           at t.Module.trigger (autoptimize_fallback.js:1177)
           at t.r.<computed> [as trigger] (autoptimize_fallback.js:1177)
           at init (autoptimize_fallback.js:1177)
           at t.Module (autoptimize_fallback.js:1177)
           at t.child [as constructor] (autoptimize_fallback.js:1177)
           at new t (autoptimize_fallback.js:1180)
           at Object.c.widgetsTypes (autoptimize_fallback.js:1180)
           at n (autoptimize_fallback.js:1180)
           at autoptimize_fallback.js:1180
       ```
   
 * PS: `https://tagprive.com/product/men-polo-10/?ao_noptimize=1` works without 
   breaking the site
    -  This topic was modified 6 years ago by [sayantansdas](https://wordpress.org/support/users/sayantansdas/).
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fautoptimize-fallback-js-error%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Author [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * (@optimizingmatters)
 * [6 years ago](https://wordpress.org/support/topic/autoptimize-fallback-js-error/#post-12932984)
 * the fact the fallback is used implies that the original JS file was missing, 
   so you probably have a page cache that has cached HTML that refers to already
   removed autoptimized JS. clear any page cache you might have and things will *
   probably* be all right 🙂

Viewing 1 replies (of 1 total)

The topic ‘autoptimize fallback js error’ is closed to new replies.

 * ![](https://ps.w.org/autoptimize/assets/icon-256X256.png?rev=2211608)
 * [Autoptimize](https://wordpress.org/plugins/autoptimize/)
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 * 1 reply
 * 2 participants
 * Last reply from: [Optimizing Matters](https://wordpress.org/support/users/optimizingmatters/)
 * Last activity: [6 years ago](https://wordpress.org/support/topic/autoptimize-fallback-js-error/#post-12932984)
 * Status: not resolved