Mumsnet not working

[Wildehorses]

When I click on mumsnet a big black box pops up, totally blank, I can see "advertisement" in tiny writing at the top but nothing else" when I click back onto a thread and try and read something I get this message: 400 Bad Request

Request Header Or Cookie Too Largenginx

Hi OP

Please can you try clearing your cache?
This should solve the issue - but let us know either way!

I've cleared my cache, but can't get the site to work on my browser. I can get in via chrome but otherwise its the large black box and the error message as above.

I've had to delete all browsing history and data for it to work.

I had to clear all my cache, cookies and history for it to work too ... very annoying!

I have an Android Samsung phone, if that helps figure out what happened

Same thing is happening for me on a Samsung
Cleared everything no joy
Started yesterday