[Standard Documentation View] Set the correct mime type for job replies
The mime type was always set to text/html resulting in warnings like "Resource interpreted as Stylesheet but transferred with MIME type text/html: [...] " displayed in attached developer tools. This prevented it from being used by webengine resulting in pages without style information. I believe this behavior change was introduced with Qt 5.14 since I first saw this after upgrading.
Edited by David Redondo