I'm very used to cross-browser web APIs having a specification document owned by a standards body, e.g. the WebRTC spec from the W3C, or the WebGL spec from Khronos.
Another web API is "Source Maps", informally described in this article, and implemented in Chrome, Firefox, and elsewhere.
However, there appears to be no authoritative specification for this API/feature! All articles/implementations just link to this Google Docs URL which just says "We're sorry. You can't access this item because it is in violation of our Terms of Service."
Is this deleted Google Doc seriously the authoritative source for Source Maps? If so, how did this feature escape any reasonable standardization process? If not, where is the authoritative spec?