feat(retry): report retry attempt number as extra header

zkat · Apr 4, 2017 · fd50927 · fd50927
1 parent 2b04494
commit fd50927
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/index.js b/index.js
@@ -242,6 +242,7 @@ function remoteFetch (uri, opts) {
   return retry((retryHandler, attemptNum) => {
     const req = new fetch.Request(uri, reqOpts)
     return fetch(req).then(res => {
+      res.headers.set('x-fetch-attempts', attemptNum)
       if (opts.integrity) {
         const oldBod = res.body
         const newBod = ssri.integrityStream({