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jed/LICENSE.txt

Forked from 140bytes/LICENSE.txt
Created August 30, 2011 23:01
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isSameOrigin
Raw
annotated.js
function(){
// will annotate once complete
}
Raw
index.js
function(a,b,c){b=document.createElement("a");b.href=a;return(a=location)[c="protocol"]==b[c]&&a[c="hostname"]==b[c]&&+a.port||80==+b.port||80}
Raw
LICENSE.txt
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
Version 2, December 2004
Copyright (C) 2011 YOUR_NAME_HERE <YOUR_URL_HERE>
Everyone is permitted to copy and distribute verbatim or modified
copies of this license document, and changing it is allowed as long
as the name is changed.
DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
0. You just DO WHAT THE FUCK YOU WANT TO.
Raw
package.json
{
"name": "isSameOrigin",
"description": "Determines whether a URL has the same origin as the current browser page.",
"keywords": [
"url",
"uri",
"origin",
"same-origin",
"browser"
]
}
Raw
test.html
<!DOCTYPE html>
<title>Same-origin tester</title>
<div>Expected value: <b>true</b></div>
<div>Actual value: <b id="ret"></b></div>
<script>
var myFunction = function(a,b,c){b=document.createElement("a");b.href=a;return(a=location)[c="protocol"]==b[c]&&a[c="hostname"]==b[c]&&+a.port||80==+b.port||80}
document.getElementById( "ret" ).innerHTML = myFunction("//gist.github.com:80")
</script>
@adriengibrat
Copy link 

function λ(l){with(λ.a||(λ.a=document.createElement("a")))return href=l,host=host,!href.indexOf(/^.*?\w\//.exec(location)[0])}

127 bytes, use a cached dom link node.
Still does'nt work on IE6 (4.5%) & Safari 4 (lt 0.5%), but both browsers have no/buggy CORS implementation, so who cares?

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