Adjust the values sent, with the 'test' message, by the `WorkerMessag…

…eHandler.setup` method

Note how the sent values have inconsistent types, with a boolean in one case and an object in the other (normal) case.
Furthermore, explicitly sending a `supportTypedArray: true` property seems superfluous at least to me.

src/core/worker.js

@@ -67,17 +67,14 @@ var WorkerMessageHandler = {
 
       // check if Uint8Array can be sent to worker
       if (!(data instanceof Uint8Array)) {
-        handler.send('test', false);
+        handler.send('test', null);
         return;
       }
       // making sure postMessage transfers are working
-      var supportTransfers = data[0] === 255;
+      const supportTransfers = data[0] === 255;
       handler.postMessageTransfers = supportTransfers;
 
-      handler.send('test', {
-        supportTypedArray: true,
-        supportTransfers,
-      });
+      handler.send('test', { supportTransfers, });
     });
 
     handler.on('configure', function wphConfigure(data) {

src/display/api.js

@@ -1665,7 +1665,7 @@ const PDFWorker = (function PDFWorkerClosure() {
               terminateEarly();
               return; // worker was destroyed
             }
-            if (data && data.supportTypedArray) {
+            if (data) { // supportTypedArray
               this._messageHandler = messageHandler;
               this._port = worker;
               this._webWorker = worker;