Title: 404 Error when write ‘xhtml’ word
Last modified: October 23, 2019
---
# 404 Error when write ‘xhtml’ word
* Resolved [WPnoob](https://wordpress.org/support/users/modernbiz/)
* (@modernbiz)
* [6 years, 7 months ago](https://wordpress.org/support/topic/404-error-when-wright-xhtml-word/)
* Hello,
* I have a problem with custom post types created via Custom Post Type UI and the
word “xhtml”.
When I write the word “xhtml” in title of custom post or any other
custom field in it I receive 404 error and nothing saved to database.
* But I can create standard post or page with this word without problem or can
use it in any custom field.
* In the same time there is no such problem at local server, and maybe it’s a problem
in some server settings, but standard wordpress post types do not have this problem.
Maybe I can solve this problem by changing some settings in post types created
via Custom Post Type UI?
- This topic was modified 6 years, 7 months ago by [WPnoob](https://wordpress.org/support/users/modernbiz/).
- This topic was modified 6 years, 7 months ago by [WPnoob](https://wordpress.org/support/users/modernbiz/).
Viewing 8 replies - 1 through 8 (of 8 total)
* Plugin Contributor [Michael Beckwith](https://wordpress.org/support/users/tw2113/)
* (@tw2113)
* The BenchPresser
* [6 years, 7 months ago](https://wordpress.org/support/topic/404-error-when-wright-xhtml-word/#post-12058352)
* This is only when used as part of the title, or a meta field?
* Can you provide an example title that you’re trying to use this with?
* This is a brand new issue I have never heard of before, so I can’t say for certain
about any type of solution. At the moment, I can’t think of any setting for CPTUI
that would change/affect this at all, since we don’t have any influence at all
regarding titles or custom fields for posts.
* Thread Starter [WPnoob](https://wordpress.org/support/users/modernbiz/)
* (@modernbiz)
* [6 years, 7 months ago](https://wordpress.org/support/topic/404-error-when-wright-xhtml-word/#post-12058816)
* This happens every time when I use it in a title or in meta fields.
* I used some links that contain the “.xhtml” code in one of my meta field.
And
if I just make title of the post like “xhtml” i have this issue. Same things
with any meta field in post at custom post type.
* Plugin Contributor [Michael Beckwith](https://wordpress.org/support/users/tw2113/)
* (@tw2113)
* The BenchPresser
* [6 years, 7 months ago](https://wordpress.org/support/topic/404-error-when-wright-xhtml-word/#post-12059430)
* Will see if I can recreate at all to at least provide some guidance on what to
check next, but I have a feeling it’s either server-specific somehow or something
coming in from WP core itself.
* Thread Starter [WPnoob](https://wordpress.org/support/users/modernbiz/)
* (@modernbiz)
* [6 years, 7 months ago](https://wordpress.org/support/topic/404-error-when-wright-xhtml-word/#post-12059439)
* Ok.
I have this issue on 2 websites on Namecheap hosting. And have no issue
at another one hosting and local server. So it’s evidently server-specifics.
But it’s interesting that this does not affect standard WordPress post types.
- This reply was modified 6 years, 7 months ago by [WPnoob](https://wordpress.org/support/users/modernbiz/).
* Plugin Contributor [Michael Beckwith](https://wordpress.org/support/users/tw2113/)
* (@tw2113)
* The BenchPresser
* [6 years, 7 months ago](https://wordpress.org/support/topic/404-error-when-wright-xhtml-word/#post-12059733)
* For more information on diagnostics, can you visit one of the sites where this
is an issue, and visit [https://www.YOURDOMAIN.com/wp-admin/admin.php?page=cptui_tools&action=debuginfo](https://www.YOURDOMAIN.com/wp-admin/admin.php?page=cptui_tools&action=debuginfo)
with your actual domain filled in. There should be a small text field underneath
that larger textarea where you can email that information to someone. Please
send it to [michael@webdevstudios.com](https://wordpress.org/support/topic/404-error-when-wright-xhtml-word/michael@webdevstudios.com?output_format=md)
so that I can check things over. There should be no personal identifying information
included, so there’s nothing to worry about there.
* Thread Starter [WPnoob](https://wordpress.org/support/users/modernbiz/)
* (@modernbiz)
* [6 years, 7 months ago](https://wordpress.org/support/topic/404-error-when-wright-xhtml-word/#post-12060522)
* Sent You debug info. Domain: slotsclub.
* Thread Starter [WPnoob](https://wordpress.org/support/users/modernbiz/)
* (@modernbiz)
* [6 years, 7 months ago](https://wordpress.org/support/topic/404-error-when-wright-xhtml-word/#post-12060726)
* It was a problem with mod_security settings, it trigered on “xhtml” word. After
disable some rules all works fine.
* Thank You for help.
* Plugin Contributor [Michael Beckwith](https://wordpress.org/support/users/tw2113/)
* (@tw2113)
* The BenchPresser
* [6 years, 7 months ago](https://wordpress.org/support/topic/404-error-when-wright-xhtml-word/#post-12061922)
* Awesome to hear it’s working now, and good information for a very odd case 😀
Viewing 8 replies - 1 through 8 (of 8 total)
The topic ‘404 Error when write ‘xhtml’ word’ is closed to new replies.
* 
* [Custom Post Type UI](https://wordpress.org/plugins/custom-post-type-ui/)
* [Frequently Asked Questions](https://wordpress.org/plugins/custom-post-type-ui/#faq)
* [Support Threads](https://wordpress.org/support/plugin/custom-post-type-ui/)
* [Active Topics](https://wordpress.org/support/plugin/custom-post-type-ui/active/)
* [Unresolved Topics](https://wordpress.org/support/plugin/custom-post-type-ui/unresolved/)
* [Reviews](https://wordpress.org/support/plugin/custom-post-type-ui/reviews/)
## Tags
* [xhtml](https://wordpress.org/support/topic-tag/xhtml/)
* 8 replies
* 2 participants
* Last reply from: [Michael Beckwith](https://wordpress.org/support/users/tw2113/)
* Last activity: [6 years, 7 months ago](https://wordpress.org/support/topic/404-error-when-wright-xhtml-word/#post-12061922)
* Status: resolved