* = website_profile, website_slides
Before this commit, the returned Content-Type was not always correct, for
example if the image tool was changing the format, which happens when given
a BMP (converted to PNG), or other types being converted to JPEG.
The previous method `force_contenttype` was too specific and it wasn't available
in every controller. It didn't even need to be a controller method because it
didn't use self.
Now we create a generic helper to ease updating headers.
The Content-Type is only updated when it is safe to do. It is especially unsafe
for example for SVG files.
task-1958000
PR: #31811
Sébastien Theys
7d3fe51100