Userscripts.org

Optimizations

1. Used top scope object to stop reduce scope chain (window.location.href)
2. Used .replace so the http url isn't in the history, only the https url
3. Took out Regex (Regex is slow), put in substring
4. Used variable to quicken substring and lookup

var url = window.location.href;
window.location.replace(url.replace(url.substring(0,7), 'https://'));

JoeSimmons wrote:
Took out Regex (Regex is slow), put in substring

No you didn't, the substring is converted into a Regex which is used by replace(), this is slower I believe because the JS engine must convert the provided string into a regex before it can do it's work.

window.location.replace(url.replace(url.substring(0,7), 'https://'));


In the above the substring function needs to lookup 'http://' then 'http://' needs to be converted in to /http:\/\//

Here is what I suggest:

(function(){
var l=window.location;
l.replace(l.href.replace(/^http:/, 'https:'));
})();


using (function(){ ... })(); inside the userscript because some userscript clients may not have a safe scope for the variables we create. There may not be a need for this currently though..