How to get WebView Content Size

Question

Hello,

I am looking to find WebView content size to scale data to fit into small size of WebView Frame.

WebView is continuous loading data as getting images from IP Camera so -(void)webViewDidFinishLoad delegate method is not called, otherwise [webview sizeThatFits:CGSizeZero] would give receiver content size.

How to get WebView content size which is continuous loading data ?

Thanks,