403 Forbidden...a padding to disable MSIE and Chrome friendly error page

Hello,

I am experiencing an issue with my Grafana OSS instance hosted in my AWS environment. When I use port forwarding to connect to the Grafana UI, I do not encounter any error messages. However, when I connect using the provided DNS, I can access the UI, but I receive a “403 Forbidden” error when trying to save a dashboard. Here’s the error message I see:

> <html> <head><title>403 Forbidden</title></head> <body> <center><h1>403 Forbidden</h1></center> </body> </html> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --> <!-- a padding to disable MSIE and Chrome friendly error page --

I have searched for solutions online, including the following resources:

https://www.reddit.com/r/aws/comments/y7cg1z/after_applying_aws_waf_getting_this_error_a/

I believe this issue may be related to a WAF rule that is failing due to the size of the dashboard. However, I am unsure about what specific changes I need to make to resolve this issue.

I am currently using Grafana version 11.1.0.

Thank you for your assistance!