pdf download problem Can't open url: data:application/pdf;base64

Hi Friends
I am using expo. What I do is connect to a site with the webView. When you press the download button on the site it downloads base64 as pdf. I can do this on the Internet. I did it in Chrome. However, I could not do it in the mobile application. How can I do that. When I click the button, the application closes. I’m getting this warning on the console

Can’t open url: data:application/pdf;base64,JVBERi0xLjQKJeLjz9MKNCAwIG9iag…