How to get External js host origin by jQuery/Js?

Question

I am trying to get host domain of an external script. For example:

<script src="//api.host.com/some.js">

Inside some.js:

console.log("Hi root domain, I am coming from " + document.referrer);

I want the some.js script to detect where it is hosted. Is this possible? Please help.

Andrew · Accepted Answer · 2018-10-20 15:27:06Z

1

There isn't a built-in method of achieving this, but you can use:

var fileName = "some.js"
var hostedAt;
var scripts = document.getElementsByTagName("script");
for (var i = 0; i < scripts.length; i++) {
    let split = scripts[i].src.split(/\//g);
    if (split[split.length-1] === fileName) {
        split[split.length-1] = "";
        split = split.join("/");
        hostedAt = split;
        break;
    }
}

answered Oct 20, 2018 at 15:27

Andrew

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1 Comment

Leonar Aung Over a year ago

That's why I love programming than my GF. Thank you so much.

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