SSTP no longer recognized
## Summary
It still worked on 3.0.5 and I read that it also worked with 3.0.12 but since 3.1.0 it is broken.
## Steps to reproduce
Just try the sample:
https://wiki.wireshark.org/SSTP
With 3.0.5, it will correctly recognize SSTP after setting up TLS decryption. With the current release version, the packets stay HTTP and no SSTP or PPP headers are recognized.
issue