tylerferguson
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tylerferguson

WordPress admin interface is stuck: "Customize: Loading"

July 27, 2017 1.4k views
WordPress Nginx Ubuntu 16.04

I recently installed WordPress on a LEMP stack. Everything has been working fine for the past couple of days but now the "customize" option loads to a white page and the browser tab says "Customize: Loading". I still see the theme options on the right side of the page but the theme itself never displays.

I've disabled all plug-ins, uninstalled themes, cleared my browser's cache, rebooted my droplet, and re-installed WordPress but the problem remains.

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2 Answers
hansen July 27, 2017

Hi @tylerferguson

Can you visit the Customizer and then post the last 10 lines of your error log:

tail -10 /var/log/nginx/error.log

EDIT:
When you visit the Customizer in your browser, make sure there's no errors relating to the Customizer displayed in your browser Console.
If you use Chrome-browser: https://developer.chrome.com/devtools

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tylerferguson July 28, 2017

@hansen

error.log:

2017/07/27 16:41:52 [error] 17552#17552: *702 FastCGI sent in stderr: "PHP message: PHP Warning:  copy(/var/www/html/wp-admin/includes/update-core.php): failed to open stream: Permission denied in /var/www/html/wp-admin/includes/class-wp-filesystem-direct.php on line 257" while reading upstream, client: 104.57.11.106, server: hollowseason.org, request: "POST /wp-admin/update-core.php?action=do-core-reinstall HTTP/2.0", upstream: "fastcgi://unix:/run/php/php7.0-fpm.sock:", host: "hollowseason.org", referrer: "https://hollowseason.org/wp-admin/update-core.php"
2017/07/27 16:54:08 [error] 1519#1519: *27 FastCGI sent in stderr: "PHP message: PHP Warning:  copy(/var/www/html/readme.html): failed to open stream: Permission denied in /var/www/html/wp-admin/includes/class-wp-filesystem-direct.php on line 257
PHP message: PHP Warning:  copy(/var/www/html/readme.html): failed to open stream: Permission denied in /var/www/html/wp-admin/includes/class-wp-filesystem-direct.php on line 257" while reading upstream, client: 104.57.11.106, server: hollowseason.org, request: "POST /wp-admin/update-core.php?action=do-core-reinstall HTTP/2.0", upstream: "fastcgi://unix:/run/php/php7.0-fpm.sock:", host: "hollowseason.org", referrer: "https://hollowseason.org/wp-admin/update-core.php"

After taking a look in the Firefox console I got the following errors:

(JS)

Load denied by X-Frame-Options: https://hollowseason.org/?customize_changeset_uuid=0b999999-e6c3-4b68-9bc1-8972c9badab8&customize_theme=twentyfifteen&customize_messenger_channel=preview-0 does not permit framing.

(CSS)

downloadable font: rejected by sanitizer (font-family: "dashicons" style:normal weight:normal stretch:normal src index:0) source: https://hollowseason.org/wp-includes/fonts/dashicons.eot
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  • hansen July 28, 2017

    @tylerferguson

    It looks like the permissions is off. If your PHP+Nginx is using the default user/group called www-data, then run the following command to reset the permissions:

    sudo chown -R www-data:www-data /var/www/html

    Also, it looks like you might have set the header X-Frame-Options in your Nginx configuration to something, which is too restrictive, so change it to this:

    add_header X-Frame-Options SAMEORIGIN;
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