Redirection error in custom visual

I am creating a custom visual in powerBi service. But Facing problem when trying to redirect on click of button or even on the click of anchor link.

Error which I am getting when trying to redirect using javascript-

Blocked opening 'www.google.com' in a new window because the request was made in a sandboxed frame whose 'allow-popups' permission is not set.

Description About the visual:-

I have three dropdown in my custom visual whose values i have to supply as query parameters with a url. So, that it can interact with my webservice and create the pdf or ppt. 

But i can unable to open this link in seperate tab by using javascript or even from anchor link.  

I can share the code if you want. 

Please help its urgent . Thanks in advance.