code-server/src/node/proxy.ts
Anmol Sethi f5cf3fd331
proxy.ts: Do not always rewrite redirects against the base path
This breaks --proxy-path-passthrough

However, we still need this when that code is disabled as many apps will
issue absolute redirects and expect the proxy to rewrite as appropriate.

e.g. Go's http.Redirect will rewrite relative redirects as absolute!
See https://golang.org/pkg/net/http/#Redirect
2021-02-01 11:08:40 -05:00

19 lines
631 B
TypeScript

import proxyServer from "http-proxy"
import { HttpCode } from "../common/http"
export const proxy = proxyServer.createProxyServer({})
proxy.on("error", (error, _, res) => {
res.writeHead(HttpCode.ServerError)
res.end(error.message)
})
// Intercept the response to rewrite absolute redirects against the base path.
// Is disabled when the request has no base path which means --proxy-path-passthrough has
// been enabled.
proxy.on("proxyRes", (res, req) => {
if (res.headers.location && res.headers.location.startsWith("/") && (req as any).base) {
res.headers.location = (req as any).base + res.headers.location
}
})