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Summary
I was using the direct message feature and sent a friend a link to an application but now our direct message chat locks up mattermost in the browser tab and the desktop client 
.
Steps to reproduce
I haven't tried to replicate issue do to locking up already one chat but below is a similar link I sent.
https://xxx.xxx.xxx/app/kibana#/discover?_g=(time:(from:now-1w,mode:relative,to:now))&a=(columns:!(kubernetes.containername,message),index:'project.xxx-xxx.0c339907-f541-11e6-bdb4-fa163ef7c711.*',query:(query_string:(analyze_wildcard:!t,query:'kubernetes.pod_name:%22xxx-xxx-5-h15va%22%20AND%20kubernetes.namespace_name:%22xxx-xxx%22')),sort:!('@timestamp',desc))
Expected behavior
For mattermost to handle the link correctly. Also maybe a way to delete a bad message or even the full direct message chat.
Observed behavior
Nothing really. I sent the message and after that every time either of us go back to the direct message it locks up the browser tab or desktop client.