allow late build opt-outg

systemjs · Jul 8, 2016 · 82b7f0f · 82b7f0f
1 parent a362009
commit 82b7f0f
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/lib/trace.js b/lib/trace.js
@@ -485,6 +485,11 @@ Trace.prototype.getLoadRecord = function(canonical, traceOpts, parentStack) {
           return loader.instantiate({ name: normalized, metadata: load.metadata, address: address, source: source });
         })
         .then(function(result) {
+
+          // allow late build opt-out
+          if (load.metadata.build === false)
+            return false;
+
           curHook = '';
           if (!result)
             throw new TypeError('Native ES Module builds not supported. Ensure transpilation is included in the loader pipeline.');