Title: Error dev-console chrome
Last modified: October 3, 2017

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# Error dev-console chrome

 *  Resolved [rosigny555](https://wordpress.org/support/users/rosigny555/)
 * (@rosigny555)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/error-dev-console-chrome/)
 * Hi,
 * I can’t figure it out, but I have 3/4 errors in the dev-console of chrome on 
   the pages where there is a map of events manager:
 * [Violation] Added non-passive event listener to a scroll-blocking ‘wheel’ event.
   Consider marking event handler as ‘passive’ to make the page more responsive.
   See [https://www.chromestatus.com/feature/5745543795965952](https://www.chromestatus.com/feature/5745543795965952)
 * also for “mousewheel’ and ‘touchstart'(and sometimes also ‘touchmove’)
 * Is this something you are familiar with?
 * Thank you, Roos

Viewing 7 replies - 1 through 7 (of 7 total)

 *  [jordanthedesigner](https://wordpress.org/support/users/jordanthedesigner/)
 * (@jordanthedesigner)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/error-dev-console-chrome/#post-9553720)
 * Thanks for using EM. Is this error still produced with EM turned off/deactivated?
 *  Thread Starter [rosigny555](https://wordpress.org/support/users/rosigny555/)
 * (@rosigny555)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/error-dev-console-chrome/#post-9554601)
 * Thanks for your respons. No, when EM is deactivated the errors are gone(as there
   are no maps or events with a map). Also no difference between log in or out of
   WordPress.
    The error has something to do with the map ( I think). I also noticed
   that when I visit the page or event the first time the error is not there, it
   is when I do refresh. Furthermore I cannot remember I have seen this before, 
   as I do a lot of refreshes while using the dev-console of chrome for tryout css-
   editing. And I have the same error on my website with all plugins activated, 
   but also on a test-site with only eventsmanager activated…in a multisite envirement
   this is my test-site: [http://www.umbriavita.info](http://www.umbriavita.info),
   Regards
 *  Thread Starter [rosigny555](https://wordpress.org/support/users/rosigny555/)
 * (@rosigny555)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/error-dev-console-chrome/#post-9554625)
 * Also changing theme doesn’t change the issue…
 *  [jordanthedesigner](https://wordpress.org/support/users/jordanthedesigner/)
 * (@jordanthedesigner)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/error-dev-console-chrome/#post-9557451)
 * I just visited the page and am not seeing the errors in the chrome console.
 *  Thread Starter [rosigny555](https://wordpress.org/support/users/rosigny555/)
 * (@rosigny555)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/error-dev-console-chrome/#post-9558148)
 * It is when you refresh the page, did you also try that?
 *  Thread Starter [rosigny555](https://wordpress.org/support/users/rosigny555/)
 * (@rosigny555)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/error-dev-console-chrome/#post-9558308)
 * Ah I have found the issue, it has something to do with google maps javascript
   api themselves.
 * The issue is reported here: [https://issuetracker.google.com/issues/63211698](https://issuetracker.google.com/issues/63211698)
 * And [STACKOVERFLOW](https://stackoverflow.com/questions/39152877/consider-marking-event-handler-as-passive-to-make-the-page-more-responsive?noredirect=1&lq=1)
   gives some sort of explanation…
 *  Thread Starter [rosigny555](https://wordpress.org/support/users/rosigny555/)
 * (@rosigny555)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/error-dev-console-chrome/#post-9564843)
 * Ok, resolved as not an events manager issue..

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘Error dev-console chrome’ is closed to new replies.

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 * 7 replies
 * 2 participants
 * Last reply from: [rosigny555](https://wordpress.org/support/users/rosigny555/)
 * Last activity: [8 years, 6 months ago](https://wordpress.org/support/topic/error-dev-console-chrome/#post-9564843)
 * Status: resolved