Fix swallowed sync parse / compile error

unifiedjs · Jun 12, 2016 · f206ad2 · f206ad2
1 parent a4a3fb0
commit f206ad2
Showing 1 changed file with 9 additions and 1 deletion.
diff --git a/lib/unified.js b/lib/unified.js
@@ -446,6 +446,7 @@ function unified() {
      */
     function process(file, options, done) {
         var complete = false;
+        var exception;
 
         assertConcrete('process');
         assertParser('process');
@@ -464,11 +465,18 @@ function unified() {
         }, function (err) {
             complete = true;
 
-            (done || bail)(err, file);
+            if (done) {
+                done(err, file);
+            } else {
+                exception = err;
+            }
         });
 
         assertDone('process', complete, done);
 
+        /* Throw sync error. */
+        bail(exception);
+
         return file;
     }