Title: Plugins and Markup Validation
Last modified: August 19, 2016

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# Plugins and Markup Validation

 *  [ads1018](https://wordpress.org/support/users/ads1018/)
 * (@ads1018)
 * [16 years, 8 months ago](https://wordpress.org/support/topic/plugins-and-markup-validation/)
 * Hey guys,
    I just installed the SIFR plugin. When I activate the plugin my theme
   doesn’t pass the markup validation on W3. When it’s deactivated my theme passes.
   Any idea why?

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [Mark Ratledge](https://wordpress.org/support/users/songdogtech/)
 * (@songdogtech)
 * [16 years, 8 months ago](https://wordpress.org/support/topic/plugins-and-markup-validation/#post-1215919)
 * What kind of validation errors? Does the site still render correctly in all browsers?
   In my experience, Flash can be difficult to get to validate.
 *  Thread Starter [ads1018](https://wordpress.org/support/users/ads1018/)
 * (@ads1018)
 * [16 years, 8 months ago](https://wordpress.org/support/topic/plugins-and-markup-validation/#post-1215924)
 * Yeah that’s what I’ve come to learn too. These are the type of validation errors
   I get:
 * > Line 20, Column 30: required attribute “type” not specified
   > <script language=”javascript”> var disabled = false; var macff = true; </script
   > >
   > The attribute given above is required for an element that you’ve used, but 
   > you have omitted it. For instance, in most HTML and XHTML document types the“
   > type” attribute is required on the “script” element and the “alt” attribute
   > is required for the “img” element.
   > Typical values for type are type=”text/css” for <style> and type=”text/javascript”
   > for <script>.
 *  [Mark Ratledge](https://wordpress.org/support/users/songdogtech/)
 * (@songdogtech)
 * [16 years, 8 months ago](https://wordpress.org/support/topic/plugins-and-markup-validation/#post-1215929)
 * That’s an easy one to fix. Is that all the errors?
 *  Thread Starter [ads1018](https://wordpress.org/support/users/ads1018/)
 * (@ads1018)
 * [16 years, 8 months ago](https://wordpress.org/support/topic/plugins-and-markup-validation/#post-1215935)
 * Yup, that’s it.

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘Plugins and Markup Validation’ is closed to new replies.

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 4 replies
 * 2 participants
 * Last reply from: [ads1018](https://wordpress.org/support/users/ads1018/)
 * Last activity: [16 years, 8 months ago](https://wordpress.org/support/topic/plugins-and-markup-validation/#post-1215935)
 * Status: not resolved

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