What are some examples for when a Cookie Value will be empty when a lead fills out a form?

Forum|Forum|8 years ago
January 29, 2018
1 reply
6793 views

We have leads that are not capturing the cookie value. Is this a normal thing? If so, what are some examples of situations when this would happen?

Thank you!

Marketo

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Best answer by SanfordWhiteman

I'd be looking for bugs in the code that writes the cookie in the first place.

For example, homegrown code may have a race condition so that on pages with Marketo forms, the cookie may be written either before or after the form is rendered, giving very different results. If your code doesn't understand the Forms 2.0 event model this can easily happen.

SanfordWhiteman

Level 10

What do you mean by "the" cookie value exactly?

Do you mean a Hidden field that's set to AutoFill from a cookie? There's no case where the cookie provably exists where this is known to fail. Do you have more evidence/audit trail about what you're describing?

Danielle_Wong

Author

Community Advisor

The issue that sparked this question is: we have a hidden field on some of our forms that is supposed to capture the cookie value from our lead tracking code. However, these are coming in as the hidden field's default value "Null". I'm not sure how to find an audit trail.

Danielle W.

SanfordWhitemanAccepted solution

Level 10

I'd be looking for bugs in the code that writes the cookie in the first place.

For example, homegrown code may have a race condition so that on pages with Marketo forms, the cookie may be written either before or after the form is rendered, giving very different results. If your code doesn't understand the Forms 2.0 event model this can easily happen.

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