Hi,
thanks for your post, and sorry for the trouble.
I’m afraid that this HTTP 403 error indicates a server configuration problem, that is outside of the control of TablePress.
Here, your server’s security or firewall software are configured too
strictly. They don’t seem to like something about the data that is
sent from your browser to the server (it could be the structure, the
size, or even the content of the data). This then triggers a security
rule (because that software falsely thinks that an attack is
happening) and the request is blocked with that “403 Forbidden” server
error.
You would need to get in touch with the server admin or the webhost’s
support team here. They should be able to find the exact cause, and
the rule that triggered this, in their server error log files. Then,
they can adjust the configuration so that the false positive is no
longer triggered.
Regards,
Tobias
I came across this post after struggling with the same problem on several sites.
The answer for me was Cloudflare. The save routine in TablePress triggers several of their firewall rules. I whitelisted our IP addresses in Cloudflare.
If it helps, here are the rules that are triggered by TablePress: https://imgur.com/ZqqCOtD
Hi @stevejburge,
great find! Indeed, Cloudflare could also be a reason for this. Thanks a lot for sharing these findings!
Best wishes,
Tobias