feluelle commented on issue #17536:
URL: https://github.com/apache/airflow/issues/17536#issuecomment-896833989


   I can confirm this. Spent already a couple of hours or days trying to figure 
this out.
   
   But tbh I think the bug is somewhere upstream. My guess is FAB.
   
   I already tried a dozen things. In my case we have Airflow [running behind a 
proxy](https://airflow.apache.org/docs/apache-airflow/stable/howto/run-behind-proxy.html),
 but the proxy fix did not solve this specific issue.
   To better debug it, I used [ksniff](https://github.com/eldadru/ksniff) as we 
have Airflow running in K8s and I wanted to investigate the network traffic. 
   I used the following command to retrieve all http(s) get and post requests:
   ```
   kubectl sniff <pod> -n airflow -p -f 'tcp dst port 80 or tcp dst port 443 
and tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x47455420 or tcp[((tcp[12:1] & 0xf0) >> 
2):4] = 0x504F5354 or tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x48545450 or 
tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x3C21444F' -o -
   ```
   then I also piped this to `tshark` for better visualisation and I could only 
find http calls not a single https call being made.
   
   I don't know what is going on there. Appreciate help as well! :)
   
   


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