CODEWITHSUNDEEP
javascript
Alex Coroza
Alex Coroza

Reputation: 1757

Javascript window.open url automatically choose http or https

In my javascript application, my users can input an external link/URL somewhere in the admin panel. The users are not required to put https:// in the URL field.

Just like how we put somewebsite.com in browser's URL bar and the browser automatically chooses https or http (whichever is available), the app should automatically choose https://somewebsite.com or http://somewebsite.com.

Currently, I have something like this in my app:

var url = 'www.csszengarden.com';  // input from user  
window.open('//'+url);

The problem here is it automatically resolves the website to HTTPS even though the website is on HTTP.

How can I open an URL (without HTTP or HTTPS) and then automatically choose whichever is available?

Upvotes: 0

Views: 2261

Answers (1)

Michael Geary
Michael Geary

Reputation: 28870

The usual way to do this when you don't know which protocol the site supports is to use http and let the site redirect to https.

But if the user does provide a protocol, you want to keep that.

So a simple solution could be:

if( url.indexOf('//') < 0 ) {
    url = 'http://' + url;
}

You can probably improve on that, but it may get you started.

Upvotes: 2

Related Questions