Otter will not open xhtml

[hymie0]

I suspect this is just a configuration issue ... But I'm getting a popup message when I try to open an XHTML file, and I'd really prefer if Otter just opened the file and displayed it. Can somebody give me a pointer / push?

I'm running Otter 0.99.9 RC 12 otter-browser-0.9.99.3-rc12-x86_64.AppImage

[Emdek]

@hymie0, that list is generated from applications registered system wide, perhaps we should inject own entry for supported MIME types, when missing. As of why you get that dialog, that might be forced by header sent by the server, asking to download file instead of viewing it (also the name of file suggests download). Is that some public URL?