JS and CSS shows error 522 when Caching is on

I am running a wordpress website on my Apache2 Server behind Proxy. Wordpress "/wp-content/plugins/js_composer/assets/js/dist/js_composer_front.min.js**?ver=5.5.2** " doesn’t load and give me error 522 on chrome browser until I Purge Everything from cashing section on cloudeflare or until I load .js file manually without ver=5.5.2 in the browser.

My Caching Level is Standard Browser Cache Expiration is 30 mins. I am not using any chasing on my Proxy Server.

I wonder if someone can help to solve the problem

What’s the domain? Also, here are some community tips for dealing with 522 errors. Community Tip - Fixing Error 522: Connection timed out

Thank you for your reply. I already went through lots of Cloudflare’s documents but I am missing something.

Domain name is https://www.pioneercom.co.za and I am getting error on links such as




If you will open a URL without ver=5.5.2 or ver=1.11.4 then .js files will open in the browser it means there is not restriction on IP level and files are accessible.


I’m only seeing two errors with mixed content and at my end the social media icons are blocked.

I have been having the same issue. It all works fine in Development Mode. Any ideas?

I opened my website from three different browsers, three different machines and three different WAN links but I am getting same issue everywhere. I am still struggling to find a solution

I get a 200

Cloudflare Inc ECC CA-2
  • SSL certificate verify ok.

GET /wp-content/plugins/js_composer/assets/js/dist/js_composer_front.min.js?ver=5.5.2 HTTP/1.1
User-Agent: curl/7.35.0
Host: www.pioneercom.co.za
Accept: /

< HTTP/1.1 200 OK
< Date: Mon, 28 Jan 2019 07:07:37 GMT
< Content-Type: application/javascript
< Transfer-Encoding: chunked
< Connection: keep-alive
< Set-Cookie: __cfduid=d81a5348ee2ff25139fb12d10870915a11548659256; expires=Tue, 28-Jan-20 07:07:36 GMT; path=/; domain=.pioneercom.co.za; HttpOnly; Secure
< Last-Modified: Sat, 26 Jan 2019 06:36:01 GMT

Damn formatting :roll_eyes:

Development mode is turned Off. I changed Caching Level from “Standard” to “No query string” then Purged Everything now site loading every JS and CSS file. I will test from all three WAN links and machines then will update the community.

Problem still persist.

I tried everything but website doesn’t load properly until I turn on the Development Mode.

Thanks for checking the problem, kindly tell me if you saw any issue in the formatting so I will try to resolve the problem

Unfortunately still struggling with the same issue.

Everything works fine when I turn on my Developer Mode.

I wonder if anyone can help me to find the problem

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