When someone sends a large amount of a text as a single message in chat, it normally comes up with a 'show full text' link which lets you expand the message so you can see it in it's entirety.
Instead in the last few days it's linking to a page where I'm shown the text, unformatted at all.
https://chat.stackexchange.com/transcript/message/40422152#40422152 -- is the original message, interestingly in the transcript the 'show full text' is still working correctly however in the live chat it takes you to:
I've only noticed this happening in the Super User chat, but that maybe just because I'm not active in many others. I'm using chrome, and others have reported the same issue.
My current version of chrome is:
Version 61.0.3163.100 (Official Build) (64-bit)
This happens at home on both my linux, and windows (10) machine (the above version is from my windows machine, I'll add my linux machine when I get to check it.) I also believe it happens on my windows 10 machine at work which has no/minimal add-ins (I'll check exactly what it has when I'm next in).
I auth via google auth, and I've tried logging out and back in also.