Title: Theme Customizer Problem
Last modified: August 20, 2016

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# Theme Customizer Problem

 *  Resolved [Arie Putranto](https://wordpress.org/support/users/arieputranto/)
 * (@arieputranto)
 * [14 years ago](https://wordpress.org/support/topic/theme-customizer-problem/)
 * I’m currently developing theme and was only using Chrome to test everything. 
   Everything went well so then I test it on other browser. It was great, it works
   well on every modern browser but then something strange happened.
 * I’m testing it on customizer. Chrome load the theme perfectly and everything’s
   good. Opera and Firefox shows nothing but blank screen.
 * I have checked on Butterfly and Firebug, and it shows no error. I have disabled
   all styles and scripts but still Opera and Firefox failed to load my theme on
   Customizer.
 * I think it strange because Chrome does showing it?
 * What possibly be wrong? Can anyone tell?

Viewing 7 replies - 1 through 7 (of 7 total)

 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [14 years ago](https://wordpress.org/support/topic/theme-customizer-problem/#post-2917264)
 * [Turn debug on](http://codex.wordpress.org/Editing_wp-config.php#Debug) and [enable error logging](http://codex.wordpress.org/Editing_wp-config.php#Configure_Error_Log).
 *  Thread Starter [Arie Putranto](https://wordpress.org/support/users/arieputranto/)
 * (@arieputranto)
 * [14 years ago](https://wordpress.org/support/topic/theme-customizer-problem/#post-2917267)
 * I’ve always turn debug on and enable error logging. None of them shows any error
   even PHP Notice. As I said, it works perfectly on Chrome. No error on Chrome,
   Firebug, Butterfly, Apache log whatsoever.
 * As I said, it works perfectly on Chrome, and I’m able to load the theme via customizer
   on Chrome, and only on Chrome.
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [14 years ago](https://wordpress.org/support/topic/theme-customizer-problem/#post-2917270)
 * It could be a javascript issue. FF in particular tends to hang onto js errors
   like grim death – sometimes needing a manual kill to force it to let go even 
   after it’s been shut down.
 *  Thread Starter [Arie Putranto](https://wordpress.org/support/users/arieputranto/)
 * (@arieputranto)
 * [14 years ago](https://wordpress.org/support/topic/theme-customizer-problem/#post-2917284)
 * I don’t know. I have disables all scripts but still nothing.
    Just out of curiosity,
   FF indeed returns WARNING:
 * `Use of attributes' specified attribute is deprecated. It always returns true.`
 * on jquery.js line 2. But I am aware that it shouldn’t be the problem.
 *  Thread Starter [Arie Putranto](https://wordpress.org/support/users/arieputranto/)
 * (@arieputranto)
 * [14 years ago](https://wordpress.org/support/topic/theme-customizer-problem/#post-2917286)
 * I check on the AJAX response results (XHR) and it turns out there’s no `WP_CUSTOMIZER_SIGNATURE`
   line at the end of it.
 * It turns out, after I manually add a `WP_CUSTOMIZER_SIGNATURE` line after `</
   html>` on my footer.php template file, customizer loads my theme perfectly.
 * Now I’m trying to find out how is that WP doesn’t add that line on my theme.
 * Just FYI, that line is exists in Chrome
 * Wierd …
 *  Thread Starter [Arie Putranto](https://wordpress.org/support/users/arieputranto/)
 * (@arieputranto)
 * [14 years ago](https://wordpress.org/support/topic/theme-customizer-problem/#post-2917295)
 * It works fine after I:
 *     ```
       remove_filter( 'shutdown', 'wp_ob_end_flush_all', '1' );
       add_filter( 'shutdown', 'wp_ob_end_flush_all', '1001' );
       ```
   
 *  Thread Starter [Arie Putranto](https://wordpress.org/support/users/arieputranto/)
 * (@arieputranto)
 * [14 years ago](https://wordpress.org/support/topic/theme-customizer-problem/#post-2917297)
 * So I mark this as resolved. I will stick to the workaround until further investigation
   on what cause the problem.
 * Thx

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘Theme Customizer Problem’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 7 replies
 * 2 participants
 * Last reply from: [Arie Putranto](https://wordpress.org/support/users/arieputranto/)
 * Last activity: [14 years ago](https://wordpress.org/support/topic/theme-customizer-problem/#post-2917297)
 * Status: resolved

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