Must a sourcemap have a .map extension?

Question

If I create a source map, must I give it a .map extension, or could I call it .foo, as long as it has the correct headers?

If someone could point to documentation on thi

Answer 1

It can have any extension. In the compressed/minified/original file you put a sourceMappingUrl comment or SourceMap http header that tells the interpreter where to find the source map.

There's no true formal spec for source maps but this is the informal one: https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit

Answer 2

It can be any extension, but .map is the most used. By convention it will have the same name as the target file.

Also the documentation for the Source Maps Proposal has been moved from google docs. This is the new link: https://sourcemaps.info/spec.html