Process login (single sign on) via javascript
<p>at the moment, i'm using a freelancer to buid single sign on (login integration) with a web app. </p>

<p>My Freelancer use javascript to process and transfer data, i'm bit worried since javascript is a client side scripting. At the moment, i already use SSL. some 'transaction' he build with javascript:
- get data via javascript on background (he sent password and username via url param)
- send username and password between function in the javascript</p>

<p>Would like to your opinion, is it safe ? does SSL protect data that transmitted via javascript ? </p>

<p>just a bit worried</p>
