fix: proxy non-200 http responses

Transfer errors responses from the proxied server, including the status code, to the client. Fixes gatsbyjs#36589, aka gatsbyjs#34244, aka gatsbyjs#33333.
jsalvata · Oct 3, 2022 · 4327f39 · 4327f39
1 parent 569b5dc
commit 4327f39
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/packages/gatsby/src/utils/start-server.ts b/packages/gatsby/src/utils/start-server.ts
@@ -561,8 +561,9 @@ export async function startServer(
                 res.writeHead(response.statusCode || 200, response.headers)
               )
               .on(`error`, (err, _, response) => {
-                if (response) {
+                if (response = err.response) {
                   res.writeHead(response.statusCode || 400, response.headers)
+                  res.end(response.rawBody)
                 } else {
                   const message = `Error when trying to proxy request "${req.originalUrl}" to "${proxiedUrl}"`