docs edit

1 files changed, 4 insertions, 2 deletions

diff --git a/system/include/emscripten/emscripten.h b/system/include/emscripten/emscripten.h
index 7a2b8175..a3009936 100644
--- a/system/include/emscripten/emscripten.h
+++ b/system/include/emscripten/emscripten.h
@@ -403,9 +403,11 @@ void emscripten_call_worker(worker_handle worker, const char *funcname, char *da
  * Sends a response when in a worker call. Both functions post a message
  * back to the thread which called the worker.  The _respond_provisionally
  * variant can be invoked multiple times, which will queue up messages to
- * be posted to the worker's creator.  Eventually, the _respond variant can
+ * be posted to the worker's creator.  Eventually, the _respond variant must
  * be invoked, which will disallow further messages and free framework
- * resources previously allocated for this worker call.
+ * resources previously allocated for this worker call. (Calling the
+ * provisional version is optional, but you must call the non-provisional
+ * one to avoid leaks.) 
  */
 void emscripten_worker_respond(char *data, int size);
 void emscripten_worker_respond_provisionally(char *data, int size);