Having issue with tiles which are not being displayed when I want to print my leaflet map

[zakigates]

I created two maps containers and on the first map I added an event that when I click on it I print the both maps (I'm using window.print()). The issue that I have is that the tiles are not being displayed on the print layout . I made a lot of tests and I figured out that the problem comes from using Bootstrap. If you have any idea how to fix this without getting ride of bootstrap I would be thankfull.