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Javascript deprecation notice: Synchronous XMLHttpRequest on the main thread #13526

Open villeveikkoilen opened 4 years ago

villeveikkoilen commented 4 years ago

Steps to reproduce the issue

  1. Go to https://www.deeblogi.fi with Chrome 78 (beta) or Firefox 69
  2. Open browser console
  3. See Javascript notice

What I expected

No Javascript notices

What happened instead

There's a following notice message in console:

??/wp-content/js/postmessage.js,/wp-content/js/jed/jed.js,/wp-content/js/wpcom-proxy-request.js,/wp-content/js/likes-rest-nojquery.js?m=20190321:2999 

[Deprecation] Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.

wpLikes.displayWidget @ ??/wp-content/js/postmessage.js,/wp-content/js/jed/jed.js,/wp-content/js/wpcom-proxy-request.js,/wp-content/js/likes-rest-nojquery.js?m=20190321:2999

ajax @ ??/wp-content/js/postmessage.js,/wp-content/js/jed/jed.js,/wp-content/js/wpcom-proxy-request.js,/wp-content/js/likes-rest-nojquery.js?m=20190321:2206

getPostLikes @ ??/wp-content/js/postmessage.js,/wp-content/js/jed/jed.js,/wp-content/js/wpcom-proxy-request.js,/wp-content/js/likes-rest-nojquery.js?m=20190321:2122

readMessage @ ??/wp-content/js/postmessage.js,/wp-content/js/jed/jed.js,/wp-content/js/wpcom-proxy-request.js,/wp-content/js/likes-rest-nojquery.js?m=20190321:2468

(anonymous) @ ??/wp-content/js/postmessage.js,/wp-content/js/jed/jed.js,/wp-content/js/wpcom-proxy-request.js,/wp-content/js/likes-rest-nojquery.js?m=20190321:3304

_dispatch @ ??/wp-content/js/postmessage.js,/wp-content/js/jed/jed.js,/wp-content/js/wpcom-proxy-request.js,/wp-content/js/likes-rest-nojquery.js?m=20190321:251

WordPress and plugin version

WordPress: 5.2.3 Jetpack: 7.7.2

stale[bot] commented 4 years ago

This issue has been marked as stale. This happened because:

No further action is needed. But it's worth checking if this ticket has clear reproduction steps and it is still reproducible. Feel free to close this issue if you think it's not valid anymore — if you do, please add a brief explanation.