@DavidR: I am not talking about the SSL issue here, as stated before the SSL side is not yet implemented! I am talking about the Avast blocking here in the chrome browser (See my screenshot)!
In other browsers there is no block. Maybe there is a problem with the chrome browser that leads to problems in combination with avast. I would agree that this might be a bot, but then this bot is very widespread because the block occurs on many different computers in different locations and with different ownerships. In my opinion it would be very helpful to track down this issue also, because then this bot would be a very very widespread one and it is not discovered by Avast up to now.
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Neither was I, I was merely commenting that, I couldn't access the image that you gave the link to, so I couldn't see your screenshot.
Fortunately it has been resolved.