Thank you Wasiliy
I downloaded and replaced the new js file, but that didn’t solve the problem.
Then I tried the height view in the general settings and this didn’t show in Chrome.
When I activate the row view, you can not see the pictures in Chrome either.
When I activate the thumb view, I can see the gallery in Chrome but the pictures are in a vertical line instead of in a horizontal row.
Now I actived all 3 of them, so you can see how it looks.
Kind regards
Leen