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-rw-r--r--src/postamble.js2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/postamble.js b/src/postamble.js
index 833590f2..4b3e831d 100644
--- a/src/postamble.js
+++ b/src/postamble.js
@@ -2,6 +2,8 @@
// === Auto-generated postamble setup entry stuff ===
Module.callMain = function callMain(args) {
+ assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on __ATMAIN__)');
+
args = args || [];
ensureInitRuntime();