Originally Posted by
plunet
This is Chrome on Android but I guess it's fairly similar on the iPhone
Touch the symbol to the left of the site name
In the menu that pops up choose Cookies and Site data
And then click the trash can to delete site data. Note this will sign you out of the site and you need to log back in again.

Hope that's useful
Appreciate you posting all that. On my phone I don’t have that button though or that entire row. I have nothing next to the website name. Below it I have it exactly as in your pic w the yellow symbol next to “flyer talk” and 3 horizontal lines to the left and the search icon to the right. But above it all I see is the web site name nothing else.
And now I have a new problem…. I hit desk top version whole in this thread and now any time I open only this thread I am seeing it all small and weird and there seems to be no way to revert back.