There was an issue where extra headers were being carried over to the worker instance when performing cross-service comms - these headers were causing the request to be rejected without consideration. Cleaning up to only include the headers Budibase really cares about in request, let fetch work out the generic ones.

packages/server/src/utilities/workerRequests.ts

@@ -14,12 +14,23 @@ export function request(ctx?: Ctx, request?: any) {
   if (!request.headers) {
     request.headers = {}
   }
+
   if (!ctx) {
     request.headers[constants.Header.API_KEY] = coreEnv.INTERNAL_API_KEY
+  } else {
+    // copy all Budibase utilised headers over - copying everything can have
+    // side effects like requests being rejected due to odd content types etc
+    for (let header of Object.values(constants.Header)) {
+      if (ctx.headers[header]) {
+        request.headers[header] = ctx.headers[header]
+      }
+    }
+  }
+
+  // apply tenancy if its available
   if (tenancy.isTenantIdSet()) {
     request.headers[constants.Header.TENANT_ID] = tenancy.getTenantId()
   }
-  }
   if (request.body && Object.keys(request.body).length > 0) {
     request.headers["Content-Type"] = "application/json"
     request.body =
@@ -29,9 +40,6 @@ export function request(ctx?: Ctx, request?: any) {
   } else {
     delete request.body
   }
-  if (ctx && ctx.headers) {
-    request.headers = ctx.headers
-  }
 
   // add x-budibase-correlation-id header
   logging.correlation.setHeader(request.headers)
@@ -54,7 +62,7 @@ async function checkResponse(
     }
     const msg = `Unable to ${errorMsg} - ${responseErrorMessage}`
     if (ctx) {
-      ctx.throw(msg, response.status)
+      ctx.throw(response.status || 500, msg)
     } else {
       throw msg
     }