My problem is related to the text analysis (ctrl+f function) in Win10, ver 1809; Opera 60.0.3255.69 in the website: http://www.diplomata-belgica.be/regular_search_en.php#

Ctrl+f works fine with analysing everything in the website, except the small pop-up windows (e.g. role, name etc...) which could be opened by a triangle near the category field). Even when the pop-up window is open and text which is present in it is entered into ctrl+f search box, it does not find it in the pop-up window (only in the background if present there).

Please see attached immages for the details:

Some time ago, I could normally use this function to look up the content of the pop-up windows on this website, now it stills works fine at other PCs (Win10, Opera ver. 58.0.3135.132 as well as other browsers). So I am curious whether it is related to the version of Opera or maybe some of its settings.

I would be glad for any feedback - what and how to fix.