add web sync files and key events

src/canvas.cpp

@@ -9,6 +9,8 @@
 #ifdef __APPLE__
 #include <Foundation/Foundation.h>
 #import "objc_utils.h"
+#elif __WEB__
+void webgl_sync();
 #endif
 
 
@@ -2180,6 +2182,9 @@ bool Canvas::project_save_thread(std::string file_path, bool show_progress)
     {
         m_unsaved = false;
         m_newdoc = false;
+#if __WEB__
+        webgl_sync();
+#endif
     }
 
     if (show_progress)