Title: WP-Optimize breaks Flying Script plugin
Last modified: July 25, 2025

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# WP-Optimize breaks Flying Script plugin

 *  Resolved [wabetainfo](https://wordpress.org/support/users/wabetainfo/)
 * (@wabetainfo)
 * [10 months ago](https://wordpress.org/support/topic/wp-optimize-breaks-flying-script-plugin/)
 * I noticed that the [Flying Script](https://wordpress.org/plugins/flying-scripts/)
   plugin stops working when WP-Optimize is active. Disabling WP-Optimize or reverting
   to version 4.1.1 successfully restores Flying Script functionality. I believe
   this may be the root cause: “Cache – Start caching after plugins loaded.”, introduced
   with the 4.2.0 update.

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Support [Damilare](https://wordpress.org/support/users/deabiodun/)
 * (@deabiodun)
 * [10 months ago](https://wordpress.org/support/topic/wp-optimize-breaks-flying-script-plugin/#post-18570883)
 * Hi!
   Sorry about the conflict you’ve encountered with Flying Script.This can be
   fixed by enabling the _**Contain each included file in its own block**_ feature
   at _**WPO > Minify > JavaScript**_.
 * However, please note that WPO also has the feature to delay JavaScript execution
   until a page interaction is registered. With that, you don’t need an additional
   plugin to be installed.
   You can activate this at _**WPO > Minify > JavaScript
   > Delay JavaScript**_.
 * Hope that helps.
 * Regards.
 *  Thread Starter [wabetainfo](https://wordpress.org/support/users/wabetainfo/)
 * (@wabetainfo)
 * [10 months ago](https://wordpress.org/support/topic/wp-optimize-breaks-flying-script-plugin/#post-18571329)
 * Hi [@deabiodun](https://wordpress.org/support/users/deabiodun/)
 * Thank you for your reply. Unfortunately, I’m unable to enable the “Contain each
   included file in its own block” option because it requires the Minify feature
   to be turned on first. However, enabling Minify causes significant layout issues
   on my website, so it’s not a valid solution for me. That said, I’m still able
   to use Flying Script with WP-Optimize (version 4.1.1) without enabling that option.
 *  Plugin Support [Damilare](https://wordpress.org/support/users/deabiodun/)
 * (@deabiodun)
 * [8 months, 3 weeks ago](https://wordpress.org/support/topic/wp-optimize-breaks-flying-script-plugin/#post-18624936)
 * Hi!
   Are you still experiencing this issue with the latest updates?Instead of 
   disabling Minify in its entirety, you can disable only Minify JS or Minify CSS
   to determine which one is causing the conflict. You can then drill further from
   there.
 * Regards.
 *  Thread Starter [wabetainfo](https://wordpress.org/support/users/wabetainfo/)
 * (@wabetainfo)
 * [8 months, 3 weeks ago](https://wordpress.org/support/topic/wp-optimize-breaks-flying-script-plugin/#post-18629913)
 * Hi [@deabiodun](https://wordpress.org/support/users/deabiodun/) 
   Unfortunately
   I can no longer test this because, due to this issue and the problem that caused
   a disruption on my homepage after updating to version 4.2.0 (as reported [here](https://wordpress.org/support/topic/404-not-found-for-the-home-page-4-2-0/page/2/#post-18629911)),
   I had to switch to a different cache plugin.
 *  Plugin Support [Damilare](https://wordpress.org/support/users/deabiodun/)
 * (@deabiodun)
 * [8 months, 2 weeks ago](https://wordpress.org/support/topic/wp-optimize-breaks-flying-script-plugin/#post-18636618)
 * So sorry to hear that you had to use another plugin.
 * Feel free to get in touch if you encounter this issue on any other sites.
 * Regards,
   Damilare.

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘WP-Optimize breaks Flying Script plugin’ is closed to new replies.

 * ![](https://ps.w.org/wp-optimize/assets/icon-256x256.png?rev=1552899)
 * [WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance](https://wordpress.org/plugins/wp-optimize/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-optimize/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-optimize/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-optimize/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-optimize/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-optimize/reviews/)

 * 5 replies
 * 2 participants
 * Last reply from: [Damilare](https://wordpress.org/support/users/deabiodun/)
 * Last activity: [8 months, 2 weeks ago](https://wordpress.org/support/topic/wp-optimize-breaks-flying-script-plugin/#post-18636618)
 * Status: resolved