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Broken JS / CSS Responses by user

Jonatan Grim

New Pleskian
Hello Plesk Forum,

I'm using Plesk 12.5 on CentOS 6.7 with mod_pagespeed (Apache) (Server is up-to-date)
Extensions:
- Let's Encrypt

I have a problem with WordPress Admin.
Frontend CSS / JS is working perfectly.

When accessing /wp-admin, neither CSS or JS is working.

Results of JS:
nHPhj.png


If I try to remove a single parameter from the URL (removing &ver - as example):
3QZin.png


If a new user is accessing /wp-admin, no problems at all
It happens after time.

Can anyone help with this issue?
 
Hi Jonatan Grim,

pls. note, that this forum is a PLESK - related - forum. If you desire help with your Content Management System ( CMS, i.e.: wordpress, joomla, drupal, ... ) at your webspace, pls. consider to open a thread at:

=> Home > Forum > General Discussion > Open Topics

I'm aware that this forum is for Plesk and the reason I'm posting here, is because I was convinced this would be a server problem and not a WordPress problem.
 
Code:
<?php

/**
 * Disable error reporting
 *
 * Set this to error_reporting( -1 ) for debugging
 */
error_reporting(0);

/** Set ABSPATH for execution */
if ( ! defined( 'ABSPATH' ) ) {
    define( 'ABSPATH', dirname( dirname( __FILE__ ) ) . '/' );
}

define( 'WPINC', 'wp-includes' );

require( ABSPATH . 'wp-admin/includes/noop.php' );
require( ABSPATH . WPINC . '/script-loader.php' );
require( ABSPATH . WPINC . '/version.php' );

$load = $_GET['load'];
if ( is_array( $load ) ) {
    $load = implode( '', $load );
}
$load = preg_replace( '/[^a-z0-9,_-]+/i', '', $load );
$load = array_unique( explode( ',', $load ) );

if ( empty($load) )
    exit;

$compress = ( isset($_GET['c']) && $_GET['c'] );
$force_gzip = ( $compress && 'gzip' == $_GET['c'] );
$rtl = ( isset($_GET['dir']) && 'rtl' == $_GET['dir'] );
$expires_offset = 31536000; // 1 year
$out = '';

$wp_styles = new WP_Styles();
wp_default_styles($wp_styles);

/*
if ( isset( $_SERVER['HTTP_IF_NONE_MATCH'] ) && stripslashes( $_SERVER['HTTP_IF_NONE_MATCH'] ) === $wp_version ) {
    $protocol = $_SERVER['SERVER_PROTOCOL'];
    if ( ! in_array( $protocol, array( 'HTTP/1.1', 'HTTP/2', 'HTTP/2.0' ) ) ) {
        $protocol = 'HTTP/1.0';
    }
    header( "$protocol 304 Not Modified" );
    exit();
}
*/

foreach ( $load as $handle ) {
    if ( !array_key_exists($handle, $wp_styles->registered) )
        continue;

    $style = $wp_styles->registered[$handle];

    if ( empty( $style->src ) ) {
        continue;
    }

    $path = ABSPATH . $style->src;

    if ( $rtl && ! empty( $style->extra['rtl'] ) ) {
        // All default styles have fully independent RTL files.
        $path = str_replace( '.min.css', '-rtl.min.css', $path );
    }

    $content = get_file( $path ) . "\n";

    if ( strpos( $style->src, '/' . WPINC . '/css/' ) === 0 ) {
        $content = str_replace( '../images/', '../' . WPINC . '/images/', $content );
        $content = str_replace( '../js/tinymce/', '../' . WPINC . '/js/tinymce/', $content );
        $content = str_replace( '../fonts/', '../' . WPINC . '/fonts/', $content );
        $out .= $content;
    } else {
        $out .= str_replace( '../images/', 'images/', $content );
    }
}


// header("Etag: $wp_version");
header('Content-Type: text/css; charset=UTF-8');
// header('Expires: ' . gmdate( "D, d M Y H:i:s", time() + $expires_offset ) . ' GMT');
// header("Cache-Control: public, max-age=$expires_offset");

/*
if ( $compress && ! ini_get('zlib.output_compression') && 'ob_gzhandler' != ini_get('output_handler') && isset($_SERVER['HTTP_ACCEPT_ENCODING']) ) {
    header('Vary: Accept-Encoding'); // Handle proxies
    if ( false !== stripos($_SERVER['HTTP_ACCEPT_ENCODING'], 'deflate') && function_exists('gzdeflate') && ! $force_gzip ) {
        header('Content-Encoding: deflate');
        $out = gzdeflate( $out, 3 );
    } elseif ( false !== stripos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') && function_exists('gzencode') ) {
        header('Content-Encoding: gzip');
        $out = gzencode( $out, 3 );
    }
} */

echo $out;
exit;

I have "solved" the problem by commenting much of the above code in load-styles.php
Since this works I'm positive that this is a server problem - a Plesk problem.

Anyone having any ideas?
 
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