Google Tag Manager Container Validation Error

Question

I've received the following error from Google Tag Manager when attempting to preview a Custom HTML tag.

Error Type: JavaScript compiler error

Error Description: Error at line 3, character 4: Parse error. '}' expected

Google Tag Manager Validate Container Error

Below is the code included in the tag:

 <script> (function () { <img src="https://jelly.mdhv.io/v1/star.gif?pid=2XlZ2Enj2edTNcGWMlFSwZX2REIN&src=mh&evt=hi"> })(); </script>

Any help with troubleshooting this would is appreciated. Thanks in advance for your help!

Answer 1

It looks like you need to quote your HTML. You may also need to return it from the function as well - I've included this.

 <script> (function () { return '<img src="https://jelly.mdhv.io/v1/star.gif?pid=2XlZ2Enj2edTNcGWMlFSwZX2REIN&src=mh&evt=hi">' })(); </script>