Google Chrome ERR_SPDY_PROTOCOL_ERROR

[Wayne11]

Hi

With 6.0.3 we can't reach https://www.adobe.com with Chrome 73.0.3683.103 through Deep Inspection profile, even we exempt *.adobe.com from Deep Inspection. We have no problems at all with other Browsers as IE or FF, the exemption works and we get the origin Adobe certificate, but with Chrome we always get the "ERR_SPDY_PROTOCOL_ERROR". As soon as we change the policy SSL inspection mode from Deep Inspection to Certificate Inspection, also Chrome is able to reach the website.

So it's definitely related to Deep Inspection, but only with Chrome. Same also without any other Security Profiles on the Policy, so no influence from Web- or Application Filter.

In the Analyzer logs we can only see the traffic is getting through in this session, nothing else what would guide us into any direction.

As far as I know this SPDY is a own protocol from Google to speed up traffic, but it looks like somehow the FG is having it's difficulties with this protocol.

Anyone else has seen such a behavior?