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fix: better headers.getAll polyfill #1801

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merged 1 commit into from
Nov 22, 2022
Merged

fix: better headers.getAll polyfill #1801

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27 changes: 11 additions & 16 deletions packages/runtime/src/helpers/edge.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -89,23 +89,18 @@ globalThis.process = { env: {...Deno.env.toObject(), NEXT_RUNTIME: 'edge', 'NEXT
const self = {}
let _ENTRIES = {}

class Response extends globalThis.Response {
constructor(body, init) {
super(body, init);
// Next.js uses this extension to the Headers API implemented by Cloudflare workerd
this.headers.getAll = (name) => {
name = name.toLowerCase();
if (name !== "set-cookie") {
throw new Error("Headers.getAll is only supported for Set-Cookie");
}
return [...this.headers.entries()]
.filter(([key]) => key === name)
.map(([, value]) => value);
};
}
// Next.js uses this extension to the Headers API implemented by Cloudflare workerd
if(!('getAll' in Headers.prototype)) {
Headers.prototype.getAll = function getAll(name) {
name = name.toLowerCase();
if (name !== "set-cookie") {
throw new Error("Headers.getAll is only supported for Set-Cookie");
}
return [...this.entries()]
.filter(([key]) => key === name)
.map(([, value]) => value);
};
}


// Next uses blob: urls to refer to local assets, so we need to intercept these
const _fetch = globalThis.fetch
const fetch = async (url, init) => {
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