Title: Header invalid
Last modified: August 21, 2016

---

# Header invalid

 *  [dinchamion82](https://wordpress.org/support/users/dinchamion82/)
 * (@dinchamion82)
 * [12 years, 3 months ago](https://wordpress.org/support/topic/header-invalid/)
 * Can’t activate the plugin – installs fine, but when activated throws an “invalid
   header” error.
 * Apache log doesn’t show anything. Tested on 3.8 and 3.8.1, same results.
 * [https://wordpress.org/plugins/g-crossposting/](https://wordpress.org/plugins/g-crossposting/)

The topic ‘Header invalid’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/g-crossposting.svg)
 * [Google+ Crossposting](https://wordpress.org/plugins/g-crossposting/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/g-crossposting/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/g-crossposting/)
 * [Active Topics](https://wordpress.org/support/plugin/g-crossposting/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/g-crossposting/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/g-crossposting/reviews/)

 * 0 replies
 * 1 participant
 * Last reply from: [dinchamion82](https://wordpress.org/support/users/dinchamion82/)
 * Last activity: [12 years, 3 months ago](https://wordpress.org/support/topic/header-invalid/)
 * Status: not resolved