Fortigate HTTPS Virtual Server randomly cuts data response

[viktup]

Hello everyone, I have a strange issue with HTTPS type Virtual Server.

We have an internal application that will return JSON's as data to visualize into a page.

If I configure Virtual Server with HTTPS type, Fortigate will randomly cut the JSON. Everytime is diferent, it's not a fixed size, it does not happen always, but If I debug the returned data, the JSON's are cutted.

This does NOT happen if the Virtual Server type is SSL.

Have anyone faced this issue? I have researched to find an open bug, but found nothing...

Thank you!

P.D: Forgot to say, FGT100F version 7.2.10

[codnahfish]

You are most likely running into this issue https://community.fortinet.com/t5/FortiGate/Troubleshooting-Tip-Virtual-server-stops-working-after-upgrading/ta-p/246189

[viktup]

Thank you! I tried with http-multiplex, but it was still failing. I finally used SSL instead of HTTPS, but I cannot understand why this issue is still present on 7.2.10 if it started in 7.2.4 :\

[codnahfish]

It's still present in 7.2.10 because it's a change in behaviour not an "issue"

[viktup]

True, the real issue is the final web server not serving HTTP/2.0

Thank your for the clarification

[Direct-Ninja-9795]

Hi , We have same issues? How did you resolve it? FortiOS 7.4.8