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preston55
New Member
August 30, 2023
Question

Cross-origin resource sharing (CORS) Connection Timed Out

  • August 30, 2023
  • 8 replies
  • 4153 views

Fortinet blocking traffic to access a website application, but no issue on network outside of fortinet. What policy or service should be allow to fix this ? Thanks in advance for the expert !

 

 

8 replies

preston55
preston55Author
New Member
August 30, 2023

cors_error.JPG

srajeswaran
Staff
Staff
August 30, 2023

Can you check the traffic logs to identify the policy name and the reason for blocking?We can then modify the policy/inspection profile accordingly.

preston55
preston55Author
New Member
August 30, 2023

These were captured in forward traffic log. 

 

security event.JPG

srajeswaran
Staff
Staff
August 30, 2023

This shows the traffic is blocked by UTM, please double click on one of the entry to see the details, I expect to see the UTM component (mostly AV) blocking the traffic. We can disable that particular feature and then test.

pjawalekar
Staff
Staff
August 30, 2023

Hi preston55,
If you are using any security profiles on the policy you can validate the logs under logs section to validate if any of the attached security profile is blocking the traffic.

For single test user you can test by creating the test policy from source to destination and without any utm profiles attached, if without any security profiles it is working you can add one by one security profiles to confirm which one is blocking the traffic and once isolated you can further allow the traffic under that security profile. 

 

 

Regard's,

Pratik

preston55
preston55Author
New Member
August 30, 2023

Hi Pratik, thanks for the advice. Let me give it a try, at least some progress to identify what causing the issue. 

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