Title: Theme Preview Not Working
Last modified: August 19, 2016

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# Theme Preview Not Working

 *  [yourebusiness](https://wordpress.org/support/users/yourebusiness/)
 * (@yourebusiness)
 * [17 years, 2 months ago](https://wordpress.org/support/topic/theme-preview-not-working/)
 * I cannot preview any of newly installed wp themes like church_10, massivepress
   and massivenews theme. However, the old themes can be previewed. When I forcefully
   activate, I cannot see my site. The installation is in the root directory.
    I
   even tried this The problem exists at line 852 in the wp-includes/themes.php 
   file:
 * > $_GET[‘template’] = preg_replace(‘|[^a-z0-9_.-]|i’, ”, $_GET[‘template’]);
   > It also does this at line 861 for the style sheet.
   > $_GET[‘stylesheet’] = preg_replace(‘|[^a-z0-9_.-]|i’, ”, $_GET[‘stylesheet’]);
   > The problem is it is replacing everything that isn’t a character, number, underscore,
   > period or dash. Changing the expression in these two lines to:
   > |[^a-z0-9_.-/]|i
   > fixes the problem. “
 * from the following thread “[http://mu.wordpress.org/forums/topic.php?id=10485&#8221](http://mu.wordpress.org/forums/topic.php?id=10485&#8221);
 * I am not a wordpress expert and would appreciate if someone can help me.

Viewing 1 replies (of 1 total)

 *  Thread Starter [yourebusiness](https://wordpress.org/support/users/yourebusiness/)
 * (@yourebusiness)
 * [17 years, 2 months ago](https://wordpress.org/support/topic/theme-preview-not-working/#post-1032758)
 * Can anyone help please?

Viewing 1 replies (of 1 total)

The topic ‘Theme Preview Not Working’ is closed to new replies.

## Tags

 * [themplate](https://wordpress.org/support/topic-tag/themplate/)

 * 1 reply
 * 1 participant
 * Last reply from: [yourebusiness](https://wordpress.org/support/users/yourebusiness/)
 * Last activity: [17 years, 2 months ago](https://wordpress.org/support/topic/theme-preview-not-working/#post-1032758)
 * Status: not resolved

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