knowing the url of a script inside the script

Question

So I have a script that is loaded dynamically into the page as so:

<div>
    <script>
        var url = 'http://example.com/scripts/myscript.js?foo=bar';
        document.write('<scr'+'ipt type=\"text/javascript\" src=\""+url+"\"></scri'+'pt>')
    </script>;
</div>

I need to know, if there is a way, inside the myscript.js i am loading, to access the url to get the query string.

Thanks

Neither of those two "duplicates" answer this question, guys... — Niet the Dark Absol
– Niet the Dark Absol, Commented Nov 7, 2013 at 14:05

Community · Accepted Answer · 2017-05-23 11:50:06Z

3

When a script is running (unless you add defer or async attributes), it will always be the last element on the page so far. You can therefore take advantage of this fact:

var scripts = document.getElementsByTagName('script'),
    currentScript = scripts[scripts.length-1],
    myScriptURL = currentScript.getAttribute("src");

You can then process that myScriptURL variable to extract query string paramters, as demonstrated in this question.

edited May 23, 2017 at 11:50

CommunityBot

11 silver badge

answered Nov 7, 2013 at 14:06

Niet the Dark Absol

326k85 gold badges478 silver badges604 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

André Alçada Padez Over a year ago

even if the script is injected at a later time, and has some script tags below?

Niet the Dark Absol Over a year ago

That would count as deferring the script, which causes this method to fail.

Collectives™ on Stack Overflow

knowing the url of a script inside the script

1 Answer 1

2 Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Linked

Related