The "/builtin" page:
Return one of many built-in content files. Query parameters:
- Return the single file whose name is FILENAME.
- Override the mimetype in the returned file to be TYPE. If this query parameter is omitted (the usual case) then the mimetype is inferred from the suffix on FILENAME
- Version number of the "builtin" files. Used for cache control only.
At least one of the name= or m= query parameters must be present.
If the id= query parameter is present, then Fossil assumes that the result is immutable and sets a very large cache retention time (1 year).