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Get the proper global object depending on environment to check for existing fetch #956

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Get the proper global object depending on environment to check for existing fetch #956

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85df5f4
Use existing fetch if XMLHttpRequest not available
jcs224 Apr 19, 2021
954b5a0
Account for variations in global object
jcs224 Apr 19, 2021
db74512
Remove old attempt at fixing fetch
jcs224 Apr 19, 2021
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20 changes: 15 additions & 5 deletions fetch.js
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Original file line number Diff line number Diff line change
Expand Up @@ -597,9 +597,19 @@ export function fetch(input, init) {

fetch.polyfill = true

if (!global.fetch) {
global.fetch = fetch
global.Headers = Headers
global.Request = Request
global.Response = Response
var getGlobal = function () {
if (typeof globalThis !== 'undefined') { return globalThis }
if (typeof self !== 'undefined') { return self }
if (typeof window !== 'undefined') { return window }
if (typeof global !== 'undefined') { return global }
throw new Error('unable to locate global object')
}

var globals = getGlobal()

if (!globals.fetch) {
globals.fetch = fetch
globals.Headers = Headers
globals.Request = Request
globals.Response = Response
}