service worker should be supported

[loynoir]

Env

service worker

Detail

> JSON.stringify([typeof window, typeof Buffer, typeof btoa, typeof self, typeof self.btoa, typeof globalThis.btoa])
 '["undefined","undefined","function","object","function","function"]' 

Actual

Got Error.

Unsupported environment: window.btoa or Buffer should be supported

Expected

service worker should be supported

[loynoir]

@antfu

Given

• node also have btoa

• https://github.com/DefinitelyTyped/DefinitelyTyped/blob/05094b6df4fb6f4404333725f13d63dd8aabeb34/types/node/buffer.d.ts#L2328-L2330

I suggest check Buffer first

if (typeof Buffer === "function") {
  // ...
} else if (typeof btoa === "function") {
  // ...
}

[curran]

It still fails as this logic was not updated:

https://github.com/Rich-Harris/magic-string/blob/master/src/SourceMap.js#L3