p3d pygame-script support

Author: pmp-p

static/default.tmpl

@@ -419,6 +419,10 @@ frameborder="1"
 
     <script type="application/javascript">
 
+    globalThis.__canvas_resized = (self, ecw, ech) => {
+        console.warn("TODO: panda3d canvas monitor", self, ecw, ech)
+    }
+
     async function custom_onload(debug_hidden) {
         // this is called before anything python is loaded
         // make your js customization here