Refused to execute script from 'file_name.php' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled

Question

I make a site. It's working properly on my local server but when I upload it to live server it is giving me this error:

Refused to execute script from 'http://www.mahijat.tk/new/wp-content/cache/autoptimize/autoptimize_c648c3203309d095775637e672c00239.php' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled.

My site URL is http://www.mahijat.tk/new/

My index.php file code is

<!doctype html>
<html lang="en-US" prefix="og: http://ogp.me/ns#" class="no-js ">

<head><meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta property="og:image" content="../pbs.twimg.com/profile_images/601407094277873664/WT2mk28E_400x400.jpg" />
<link type="text/css" media="all" href="wp-content/cache/autoptimize/autoptimize_ac4e9617d860b901a683f7676a3c44be.css" rel="stylesheet" />
<link type="text/css" media="all" href="wp-content/font-awesome/css/font-awesome.min.css" rel="stylesheet" />

What is the nature of the code being called in 'mahijat.tk/new/wp-content/cache/autoptimize/…? Where is it being called if someone visits your website? — TidyDev
@TidyDev it was just a javascript code for i user animation in my site — Mahi Jat
@TidyDev now I checked my site in firefox i working perfectly but in chrome it is throwing error — Mahi Jat

rickdenhaan rickdenhaan · Accepted Answer · 2017-11-04T17:42:37

This is usually a Chrome error that happens when you make an AJAX jsonp request to a page that returns javascript but incorrectly sends a Content-Type: text/html header.

You can fix it by changing your autoptimize_.....php file to send the proper Content-Type header before outputting the javascript:

<?php
header('Content-Type: application/javascript');
// rest of the code

Refused to execute script from 'file_name.php' because its MIME type ('text/html') is not executable, and strict MIME type checking is enabled

2 Answers