Munchkin cookie disappears if user refreshes the page after giving consent to cookies

[NestoJosa]

Hello again!

We have created a landing page, where the munchkin cookie disappears when you refresh the page (after accepting all cookies):

<deleted-url-to-site>

Does anybody have an idea of what can be causing this issue?

The setup:

- Cookie-banner is set via GTM container.

- If user gives consent a trigger fires, that sets the Marketo Munchkin cookie.

Any help would be much appreciated!

Best,

ernie

[SanfordWhiteman · Accepted solution]

Your cookie consent code is explicitly deleting it on refresh. As you can see here, the variable o is empty, which is how you delete a cookie.

[NestoJosa]

Hi @SanfordWhiteman!

Thanks for your prompt response!

Now, do you have any idea as to why this is happening?

When I check the console, there is also a warning, when you refresh the page, saying 'Cookie “_mkto_trk” has been rejected for invalid domain.'

I think that this is the reason as to why the cookie is being set with an empty string  - its being deleted because the domain is invalid for some reason. But I simply cannot figure out why. 

Thanks in advance!

[SanfordWhiteman]

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When I check the console, there is also a warning, when you refresh the page, saying 'Cookie “_mkto_trk” has been rejected for invalid domain.'

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Your cookie consent code does have a “tree-walking” test where it tries to delete and reset the cookie at every possible parent level (not a very well-written test, I must say). You’d have to talk to the vendor to discover how you can ensure the cookie is preserved, rather than being deleted and never recreated.