fix: Handle requester errors with attached responses

Author: deve-sh

lib/requester/requester.js

@@ -439,9 +439,15 @@ class Requester extends EventEmitter {
             // prepare history from request debug data
             var history = getExecutionHistory(debug),
                 responseTime,
-                response;
+                response,
+                errorHasUsableResponse = false;
 
-            if (err) {
+            if (err && err.res && err.res.body && Buffer.isBuffer(err.res.body)) {
+                errorHasUsableResponse = true;
+                resBody = err.res.body;
+            }
+
+            if (err && !errorHasUsableResponse) {
                 // bubble up http errors
                 // @todo - Should we send an empty sdk Response here?
                 //