Error webhook


We have a WooCommerce store and we work with a shipping company. Our site is connected to their system through an API so they can get the order and shipping details. They can also change the order status to shipped for example. But their system is getting the following error when they try to update the staus.

HTTP/1.1 520

Date: Wed, 15 Dec 2021 08:36:55 GMT

Content-Length: 0

Connection: close

cache-control: no-store, no-cache

CF-Cache-Status: DYNAMIC

Expect-CT: max-age=604800, report-uri=

Report-To: {"endpoints":[{"url":"https:\/\/\/report\/v3?s=nGXzvpU79fuok1Nx4TzeBAM5HPZZQms5NxSLSJBNCufHsztlqjk%2FuTt4U59ZMA%2BqVM4RfsADHxesbWWM6LoG98F57b2c5QEGmoVfVbElzjUAhpms3dz7cPWgBOlyUTbJdbir"}],"group":"cf-nel","max_age":604800}

NEL: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}

Server: cloudflare

CF-RAY: 6bde58d6d9be83cb-BRU

Any idea what settings are causing this issue?



Try checking the firewall logs, You’ll be able to see which service exactly is causing the issue. You can deploy a firewall rule to allow the webhook url. I have a similar problem which needs a proper solution. You can check my thread here.


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