How to initialize fotorama in bootstrap hidden tabs?

Question

Bootstrap

Good afternoon, I'm just learning layout. There is this site chinaphotosanya.ru on bootstrap and fotorama. The problem is that bootstrap has a display: none property for hidden tabs, which is why fotorama is not initialized on them when the page is loaded, so when you first switch to a tab, you can see how it loads, as I understand from Google, this is not a bug, but a property deliberately embedded in fotorama.
Now the actual question is: how to make fotorama loaded when entering the site on all tabs?
PS I tried to compose a new one from googled jquery scripts so that when the page loads, it “clicks” on the tabs and returns to the first one, but I don’t know jquery well, so even on the same browsers, depending on the quality of the Internet, the result was not predictable.
PPS tried flexslider, it seemed to me not so convenient in work, nothing could be done with it.