cant receive base64 image 
hey guys am trying to receive base 64 image but no success getting this error i even tried php core socket but same issue i face in ratchet

from js side am sending like

```
			let msg = {
				data: data,   // base64  canvas.toDataURL('image/png')
				type: 'vstream',
			};			
           ws.send( JSON.stringify(msg));
```
on php side am getting error

```
Warning: unpack(): 64-bit format codes are not available for 32-bit versions of PHP in F:\xampp7\htdocs\test\vendor\ratchet\rfc6455\src\Messaging\MessageBuffer.php on line 122
An error has occurred: Frame must be coalesced before applying mask
Connection 80 has disconnected
```