Populating a hidden form field with javascript

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1

I have a custom field for a contact form that I need to fill with marketing tags. Salesforce needs to receive this along with all of the other fields. This is accomplished using Zapier, and all I need do is fill out the field.

The data I use to fill out the field are parameters passed via the URL. Specifically UTM parameters from Google Ad campaigns, or other campaigns with other marketing platforms.

I believe I need to use Corvid methods to set the value, since that should properly handle React correct? That would seemingly be straightforward, but every time I try to use $w it complains it is not defined. I’ve imported wix-data and wix-window, and that doesn’t help. It seems that no matter what, $w is not initiated yet. I’ve tried to delay my code till all other scripts are loaded, but that doesn’t help either. Meaning, a timeout for 10 seconds doesn’t allow $w to be defined.

document.getElementById("comp-k7xt3ajatextarea").value = utm_code;

I’m running my code in a custom element connected to a Corvid file. That custom element is placed inside the form.

Where and how can I use $w to set the input value for our custom field, and how can ensure it propagates correctly with the other fields?

Thanks

2

any answer to the above question?

3

I’ve encountered the same issue exactly. It looks like (possibly for security reason) wix ignores any data populated by external scripts. It only refers input values that are physically typed by the user, while values populated by scripts are ignored.

The question is if there is any legal way to populate input fields with script and make this input visible to WIX engine.