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remove cf internal headers before proxying

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This commit is contained in:
mrjvs 2023-10-16 20:01:29 +02:00
parent 714b91ef8c
commit f890f59d43
2 changed files with 28 additions and 1 deletions
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7
src/routes/index.ts
View file

@ -1,4 +1,8 @@
import { getProxyHeaders, getAfterResponseHeaders } from '@/utils/headers';
import {
getProxyHeaders,
getAfterResponseHeaders,
cleanupHeadersBeforeProxy,
} from '@/utils/headers';
export default defineEventHandler(async (event) => {
// handle cors, if applicable
@ -16,6 +20,7 @@ export default defineEventHandler(async (event) => {
});
// proxy
cleanupHeadersBeforeProxy(event);
await proxyRequest(event, destination, {
fetchOptions: {
redirect: 'follow',

22
src/utils/headers.ts
View file

@ -1,3 +1,13 @@
import { H3Event } from 'h3';
const blacklistedHeaders = [
'cf-connecting-ip',
'cf-worker',
'cf-ray',
'cf-visitor',
'cf-ew-via',
];
function copyHeader(
headers: Headers,
outputHeaders: Headers,
@ -44,3 +54,15 @@ export function getAfterResponseHeaders(
'X-Final-Destination': finalUrl,
};
}
export function removeHeadersFromEvent(event: H3Event, key: string) {
const normalizedKey = key.toLowerCase();
if (event.node.req.headers[normalizedKey])
delete event.node.req.headers[normalizedKey];
}
export function cleanupHeadersBeforeProxy(event: H3Event) {
blacklistedHeaders.forEach((key) => {
removeHeadersFromEvent(event, key);
});
}