Selectively copy request to prevent used request error.

lib/requests.js

@@ -131,7 +131,20 @@ function _sanitizeErrorHeaders({error}) {
     });
   }
   if(error.request) {
-    error.request = new global.Request(error.request, {
+    // get the url and the remaining properties from the request
+    const {url, ...props} = error.request;
+    // create an options object to pass to the new request
+    const options = {};
+    // do not copy these properties from the request
+    const skipKeys = new Set(['body', 'headers']);
+    for(const key in props) {
+      if(skipKeys.has(key)) {
+        continue;
+      }
+      options[key] = error.request[key];
+    }
+    error.request = new global.Request(url, {
+      ...options,
       headers: _sanitizeHeaders({httpMessage: error.request})
     });
   }