Can pass query string value to Marketo form that's in an iframe?

[Jim_DiModica]

We have a form that captures the referrer value from the query string. The form has a hidden field for the referrer. It works HERE in a non-iframe situation.

We now want to use the iframe delivery method for a different form on a different page, so the form is loaded into a page on our web site via an iframe. I need it to capture the referrer (ref) value from the parent URL: i.e. xxx.com/static/400/?ref=DM

What script is required in the iframe page that has the form? Anything else?

Many thanks!

[SanfordWhiteman · Accepted solution]

Certainly it's possible operating fully within the IFRAME, and the building blocks were detailed by Dan Stevens on the discussion you just cross-posted to.

However, even easier -- if you control the outer page's code itself -- is to append the query param to the IFRAME src, so your form will see it like any other param.

In other words (pseudocode):

     NewIframe.src = 'http://pages.example.com/lp-with-form.html' + document.location.search;

Then you can use standard hidden fields, because the outer page's query string is also the IFRAME's query string.