HI i try to set an radar image dsiplayed as background image on my mirror.
At the moment i try with: MMM-BackgroundSlideshow which i found does displaying and scaling the image very well.
In the Background i have a cronjob which downloads and converts the radar image from another source.
My problem is that the browser newer updates the image due to caching.
Even if i see in firefox debugger that the image got downloaded with 200 the broser does not update the image, als just reloading the page is not enough i have to “shift” reload the page to update the image.
Is there a way i can invalidate the cache?
Tried also adding a timestamp to the image and deleting the old one. But MMM-BackgroundSlideshow does no reread the folder content while running. And is i get a new image every 10 minutes i don’t want to restart the whole application.