Hi John-Mark I notice there are still a few CONTENT_SVGs hanging around in my platform code, so it won't compile immediately. Unless there's an easier way I guess I need to add some magic to check the MIME type of the content and then do a reverse lookup to check if it is SVG? (I handle SVGs differently in a few places so they end up on the clipboard or export as DR2D (vector) instead of ILBM (bitmap)) Something like content_type_name(mimetype) which returns an arbitrary type string (human-readable filetype) could be useful for doing reverse lookups, or simple filetyping for file extensions etc on saves for platforms that need that. I see the RISC OS code has its own little MIME to RISC OS type code that performs this function, but something that converts known NetSurf MIME types to more complex types in the core would be useful for all the front ends I think. Chris