Backend with bad graphic after ssl

[Lasse Jensen]

I have a new installaton of prestashop 1.7.5.2 and everything worked perfectly - but after turning on https (and first getting a token error) the frontoffice works perfectly, but the grahics in the backoffice is completely wrong. 

- when turning https of again it goes back to normal..

my web supplier added at force https request in the htacces file and that havent changed anything... (and I didnt expect it to either)

I must admit I dosent have a clue about where to look for a solution for this... 

Before https:

After https:

 

 

[Lasse Jensen]

I have attached a screendump of the prestashop information...

 

Also I have noticed that sometimes the view in the backoffice changes to a view that is a little better...

and in the bottom of that view the following sentence is found:

"Mobilversionen af denne side er ikke tilgængelig endnu.

Brug venligst en computer for at tilgå denne side, indtil siden er blevet mobiltilpasset."

in english it means: The mobile version of this page isnt available yet, please use a computer  to access this page until the site is adapted for mobile phone.

 

Maybe that gives a clue?