Sorry for the slow reply Rikard
It turned out to be a marker from Dashlane password google extension that recognised there was field to be completed and was putting the marker there for autoform filling. That’s why it didn’t show on other browsers or clients.
Sorry for that.
Cheers
We don’t have it installed and I don’t ever remember anyone installing it but I have removed the files from the back end and it seems to be working properly now.
Thanks
The only cache I have is the built in one in WordFence and this has already been cleared a number of times.
Why do you think I have WP-Super-Cache?