RE: Help I have no image when I connect

[Fernando Sanz Baeza <fe...@hotmail.es>]

Hi
Yes, the behavior is identical across all browsers.
Before https was configured it was in http and the image did not work anyway.
Everything is local, so there is no infrastructure to review the data.
I’ve checked the websockets and I’ve verified that the connections are established well. I’ve also disabled it (or so I think) and so although Tomcat works, guacamole does not.
Thanks
PD: Sorry for the time it took me to answer
-Fer

De: Nick Couchman <vn...@apache.org>
Enviado el: miércoles, 21 de abril de 2021 13:33
Para: user@guacamole.apache.org
Asunto: Re: Help I have no image when I connect

On Tue, Apr 20, 2021 at 10:58 AM Fernando Sanz Baeza <fe...@hotmail.es>> wrote:
Hi
The browser you can see in the picture is: Brave Versión 1.23.71 Chromium: 90.0.4430.72 (Build oficial) (64 bits).
Tests in Firefox 88.0(64 bits)

If I'm reading the results correctly, it doesn't seem to matter what browser you use, the behavior is identical across all browsers? If the message identified previously in the JS console is, indeed, the issue (The source image could not be decoded), then it seems like something between Tomcat and the browser is interfering with the image - mangling it, removing it, etc. Here's a few more thoughts for where to look:
* It looks like you're running Tomcat in HTTPS mode (port 8443) - could you try disabling HTTPS and just using port 8080 for Tomcat and see what happens?
* Is there any network infrastructure between the Tomcat server and your browser that could cause issues - as mentioned before, a firewall doing packet inspection or data loss prevention (DLP), etc.?
* It's possible something is amiss with WebSockets, and it might be worth trying to forcibly disable that. I haven't found great instructions on how to do that directly in Tomcat, so you may have to poke around a bit for that and figure out how to do it, or maybe someone on the list can chime in with ideas.

-Nick