Updated our JavaScript playground.

Author: agarny

tests/bindings/javascript/res/res/libopencor.js

@@ -203,19 +203,13 @@ $(() => {
 
         fileReader.readAsArrayBuffer(inputFile);
 
-        fileReader.onload = async () => {
+        fileReader.onload = () => {
           try {
-            // Retrieve the contents of the file.
-
-            const fileArrayBuffer = await inputFile.arrayBuffer();
-            const memPtr = loc._malloc(inputFile.size);
-            const mem = new Uint8Array(loc.HEAPU8.buffer, memPtr, inputFile.size);
-
-            mem.set(new Uint8Array(fileArrayBuffer));
+            // Retrieve the contents of the file and pass a Uint8Array to the binding.
 
             file = new loc.File(inputFile.name);
 
-            file.setContents(memPtr, inputFile.size);
+            file.setContents(new Uint8Array(fileReader.result));
 
             // Determine the type of the file.