Title: DevTools failed to load source map
Last modified: May 6, 2021

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# DevTools failed to load source map

 *  Resolved [Bojan Denić](https://wordpress.org/support/users/evilmc/)
 * (@evilmc)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/devtools-failed-to-load-source-map/)
 * Hi Raul,
 * I use your latest version and I have this errors in my console for source maps:
 *     ```
       DevTools failed to load source map: Could not load content for https://website/wp-content/uploads/fvm-cache/min/style.min.css.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE
       DevTools failed to load source map: Could not load content for https://website.com/wp-content/uploads/fvm-cache/min/styles-default.css.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE
       ```
   
 * How to fix this issue? Thanks!

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Author [Raul P.](https://wordpress.org/support/users/alignak/)
 * (@alignak)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/devtools-failed-to-load-source-map/#post-14408087)
 * You must be having a reference to styles-default.css.map inside a file called
   styles-default.css and this error must be showing even if you disable FVM.
 * To solve it, you need to edit the styles-default.css and remove the styles-default.
   css.map reference, usually at the bottom.
 * FVM tries to remove these when it sees them, but depending on the format, it’s
   not always possible to do it automatically.
 *  Thread Starter [Bojan Denić](https://wordpress.org/support/users/evilmc/)
 * (@evilmc)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/devtools-failed-to-load-source-map/#post-14408167)
 * Where I can find that CSS: styles-default.css ?
 *  Plugin Author [Raul P.](https://wordpress.org/support/users/alignak/)
 * (@alignak)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/devtools-failed-to-load-source-map/#post-14408172)
 * It’s one of the files included on your site by either your theme or some plugin.
   Deactivate FVM and look at the page html source for the right path, or use the
   network tab on the web dev tools.
 *  Thread Starter [Bojan Denić](https://wordpress.org/support/users/evilmc/)
 * (@evilmc)
 * [5 years, 1 month ago](https://wordpress.org/support/topic/devtools-failed-to-load-source-map/#post-14408421)
 * Ok, I found this 2 plugins with:
    `/*# sourceMappingURL=style.min.css.map */`
 * `https://website.com/wp-content/plugins/sitepress-multilingual-cms/templates/
   language-switchers/legacy-dropdown/style.min.css`
    `https://website.com/wp-content/
   plugins/surbma-yes-no-popup/assets/css/styles-default.css`
 * Thanks!

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘DevTools failed to load source map’ is closed to new replies.

 * ![](https://ps.w.org/fast-velocity-minify/assets/icon-128x128.jpg?rev=1440946)
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 * 4 replies
 * 2 participants
 * Last reply from: [Bojan Denić](https://wordpress.org/support/users/evilmc/)
 * Last activity: [5 years, 1 month ago](https://wordpress.org/support/topic/devtools-failed-to-load-source-map/#post-14408421)
 * Status: resolved