Using Joomla 3.9.8

I'm using the fetch() api in order to retrieve some data from a remote API. When I have the api results I'm displaying them in html elements.

The API returns various values, one of these is url, I need to insert this url into an image src. This is normally pretty easy, but i've noticed that when I try this in Joomla the image src is rewritten and prefixed with my site name. This is causing broken images.

In order to insert the code i'm using Sourcerer and a custom html module.

I've created a stripped back example to demonstrate the issue. For this example I will use the random user api, but the logic is the same with any api.

The code I am inserting into the custom html module using sourcerer is;

    .then(response => response.json())
    .then(data => {
      var url = data.results[0].picture.large;
      // displays https://randomuser.me/api/portraits/men/47.jpg
      console.log('<img src=" '+url+' ">');
      // displays <img src="/example.com/ https://randomuser.me/api/portraits/men/47.jpg " >

I am logging the url variable to the console, and the issue is clear. The image src is being prefixed with my domain name.

Here's a fiddle containing the exact same code, different results.

I'm almost certain it's an issue with Joomla SEF URLs because when I disable the plugin > System - SEF everything works as expected.

I've read an article explaining the issue and some possible troubleshooting steps like re-arranging the plugin order, but nothin appears to work.

Hopefully someone can help as i've been stuck on this for quite a while now.

  • Can you try doing this without Sourcerer and see if you get the same results?
    – Lodder
    Jul 23, 2019 at 11:56
  • I've just tried adding this code snippet on my own site without Sourcerer (SEF enabled) and it work's perfectly fine.
    – Lodder
    Jul 23, 2019 at 11:59
  • @Lodder would you believe.. I had a space in my code here '<img src=" '+url+' ">' (between the double and single quotes). I obviously fixed it when asking the question and forgot about it! What a waste of a morning :/ Thanks for your help
    – jonboy
    Jul 23, 2019 at 12:10
  • 1
    Haha how unfortunate. Feel free to write this as an answer and mark it as accepted ;)
    – Lodder
    Jul 23, 2019 at 12:20
  • Hmm, why doesn't JSE have a close reason for Off-topic: Typo questions like this one? Jul 23, 2019 at 12:30

1 Answer 1


So... I made this far too difficult for myself.

The answer is that I had a space in my code, right after the opening img src=" this was causing the Joomla SEF plugin to prefix my domain URL in the space.

Original code;

console.log('<img src=" '+url+' ">');

Working code;

console.log('<img src="'+url+'">');

Hope this saves someone else a few hours work.

  • I'm still very interested as to how a space could result in the /example.com/ being prepended to the src value. I wonder if it's Sourcerer trying to be clever.
    – Lodder
    Jul 23, 2019 at 13:25

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