Title: Heatmap XMLHttpRequest deprecated
Last modified: August 22, 2016

---

# Heatmap XMLHttpRequest deprecated

 *  Resolved [BigXgy](https://wordpress.org/support/users/bigxgy/)
 * (@bigxgy)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/heatmap-xmlhttprequest-deprecated/)
 * Hey camu my friend 🙂
 * Everytime I clicked on “Heatmap On” on a page it didn’t trigger from first click.
   I must always click twice for showing the heatmap. Now I know why.
    The console
   gave me this:
 * Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental
   effects to the end user’s experience. For more help, check [http://xhr.spec.whatwg.org/](http://xhr.spec.whatwg.org/).
 * Can you check this out?
 * Thanks and good night.
 * [https://wordpress.org/plugins/wp-slimstat/](https://wordpress.org/plugins/wp-slimstat/)

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

 *  Plugin Contributor [Jason Crouse](https://wordpress.org/support/users/coolmann/)
 * (@coolmann)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/heatmap-xmlhttprequest-deprecated/#post-5819098)
 * No, that should not affect the heatmap. What browser are you using? And what 
   version of the heatmap? Can you make sure you have “noslimstat” in the settings
   to not run the callback on certain links?
 *  Thread Starter [BigXgy](https://wordpress.org/support/users/bigxgy/)
 * (@bigxgy)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/heatmap-xmlhttprequest-deprecated/#post-5819185)
 * Hmm, strange.
    Chrome 40. Latest heatmap version. noslimstat didn’t run the callback
   on certain links. I checked the settings. If this is nothing to worry about you
   can close this ticket. I have no problem to click twice. The sentence “detrimental
   effects to the end user” scared me. That’s all.
 *  Plugin Contributor [Jason Crouse](https://wordpress.org/support/users/coolmann/)
 * (@coolmann)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/heatmap-xmlhttprequest-deprecated/#post-5819191)
 * I’ll research the subject and report back 😉
 *  Plugin Contributor [Jason Crouse](https://wordpress.org/support/users/coolmann/)
 * (@coolmann)
 * [11 years, 3 months ago](https://wordpress.org/support/topic/heatmap-xmlhttprequest-deprecated/#post-5819348)
 * [http://stackoverflow.com/questions/24639335/javascript-console-log-causes-error-synchronous-xmlhttprequest-on-the-main-thr](http://stackoverflow.com/questions/24639335/javascript-console-log-causes-error-synchronous-xmlhttprequest-on-the-main-thr)
 * In our case the request must be synchronous anyway, because we need to wait for
   the data from the server to render the heatmap.

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

The topic ‘Heatmap XMLHttpRequest deprecated’ is closed to new replies.

 * ![](https://ps.w.org/wp-slimstat/assets/icon.svg?rev=2832242)
 * [SlimStat Analytics](https://wordpress.org/plugins/wp-slimstat/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-slimstat/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-slimstat/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-slimstat/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-slimstat/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-slimstat/reviews/)

## Tags

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

 * 4 replies
 * 2 participants
 * Last reply from: [Jason Crouse](https://wordpress.org/support/users/coolmann/)
 * Last activity: [11 years, 3 months ago](https://wordpress.org/support/topic/heatmap-xmlhttprequest-deprecated/#post-5819348)
 * Status: resolved