Person Source hidden field not populating

Question

Hi team, I have a question I hope can be answered: 
 
In creating a demo request form, I'd like to have lead source be filled in by default, with the chance of it changed via url parameters. This is working just fine with a few other fields I have as hidden fields, but for some reason, it is NOT populating for person source. Any reason you can see it not working correctly?

SanfordWhiteman · Accepted Answer

https://abnormalsecurity.com/request-demo/

You have custom code in this separate JS file that's overriding Marketo's behavior:

abnormalsecurity.com/wp-content/themes/saasland/assets/js/custom-wp.js

(Note that code itself is broken — it doesn't use the Marketo Forms JS API properly, so should be rewritten — but it's the cause.)

pcjohnson6 · Answer

Here's an example of a field that's working on the same form with the same type of logic:

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