Special characters in the post title have been known to cause issues with JavaScript when it is minified, especially in the admin when editing the post itself (ie. issues with metaboxes, media upload, etc.).

Latin Character Tests

This is a test to see if the fonts used in this theme support basic Latin characters.

• The post title renders the word “with” in italics and the word “markup” in bold (and “up” is ^superscript).
• The post title markup should be removed from the browser window / tab.

A few things to check for:

• Non-breaking text in the title, content, and comments should have no adverse effects on layout or functionality.
• Check the browser window / tab title.
• If you are a plugin or widget developer, check that this text does not break anything.

The following CSS properties will help you support non-breaking text.

-ms-word-wrap: break-word;
word-wrap: break-word;