This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(160, 52%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMK%3C/text%3E%3C/svg%3E)
While accessing the container app which is behind the application gateway, it is working sometimes otherwise returning 403 error. What should I do to resolve this issue?
Hello @Manjeet Kaur ,
Welcome to Microsoft Q&A Platform. Thank you for reaching out & hope you are doing well.
As mentioned in the Application gateway documents,
If you receive a probe status code mismatch: 403 - Access forbidden error, you need to check whether access to the path is allowed on the backend server.
You can also encounter HTTP 403 Forbidden error if you are utilizing WAF skus and have WAF configured in Prevention mode. If enabled WAF rulesets or custom deny WAF rules match the characteristics of an inbound request, the client is presented a 403 forbidden response.
Refer: https://learn.microsoft.com/en-us/azure/application-gateway/http-response-codes#403--forbidden
Could you please provide some more details regarding your Application gateway configuration:
Regards,
Gita
@Manjeet Kaur , could you please provide an update on this post and share the requested details for further discussion on this issue?
Hi @GitaraniSharma-MSFT ,
Thank you for your response.
I have resolved the issue with the help of Container App Engineer and Application Gateway Engineer from Microsoft.
Regards,
Manjeet
Thank you for the update, @Manjeet Kaur . Glad to hear that your issue is now resolved.