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I'm trying to make a small snippet on Google Chrome (as a bookmark) so I can "alert" my remote ip adress, but it is not working as it gives me the following error :

XMLHttpRequest cannot load https://l2.io/ip.js?var=myip. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://stackoverflow.com' is therefore not allowed access.

var url = "https://l2.io/ip.js?var=myip" var httpRequest = new XMLHttpRequest() httpRequest.onreadystatechange = function (data) { // code } httpRequest.open('GET', url) httpRequest.send() alert(httpRequest["response"])

How can I get around this problem ?

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  • Is that your server you are calling? Commented Oct 25, 2015 at 14:45
  • l2.io/ip.js?var=myip is a webpage that show your current ip address, I want to crawl it using Javascript so I can output (as an alert) my current ip address by clicking a bookmarklet, but it doesn't seem to work (for security reasons, I can't call it on every websites) Commented Oct 25, 2015 at 14:47
  • Which is why I wanted to know if it was your server otherwise you could solve it without much effort Commented Oct 25, 2015 at 14:48
  • No it's not my server Commented Oct 25, 2015 at 14:52

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You can get around this problem in a few ways. Tampermonkey, Chrome extensions or a Chrome app.

Here is an example using Tampermonkey.

// ==UserScript== // @name Show my IP // @version 0.1 // @include /https?:\/\/*/ // @grant GM_xmlhttpRequest // @grant GM_registerMenuCommand // ==/UserScript== GM_registerMenuCommand('My IP', run); function run(){ GM_xmlhttpRequest({ method: "GET", url: "https://l2.io/ip.js?var=myip", onload: function(response) { alert(response.responseText); } }); }

This adds a menu option to the tampermonkey plugin called "My IP" that when you click it, it shows the alert box.

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