Form Post-Submit Redirect page does a double refresh

I have a form that on submit redirects to another page on my site. But a few seconds after the rendering of the page it refreshes again. Does anyone know why I'm getting this kind of behaviour?

My form is in a lightbox and is connected to a Google Spreadsheet for storage.

This code is not live yet, it's only on a trial site, scheduled to launch in the next couple weeks.

Hi. You can setup site access password then share url, we can check easier

Thanks for suggesting that.

https://rca-rosemont.squarespace.com/membership

Password: MattPres

And click either form button (Rosemont Member or Associate Member), fill out the form and when it submits the page redirect loads but then a second later it reloads.

On 7/3/2022 at 11:07 AM, KPWebDesign said:

Thanks for suggesting that.

https://rca-rosemont.squarespace.com/membership

Password: MattPres

And click either form button (Rosemont Member or Associate Member), fill out the form and when it submits the page redirect loads but then a second later it reloads.

Can you provide House Number & Street, City, Postal

I tried enter some on my country & it always say error

17 hours ago, paul2009 said:

You'll see this type of behaviour when you are logged in to your site. It is because you are previewing your site in a frame and the redirect will cause this behaviour.

Visitors to the site will not experience this issue.

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Thanks so much! I really appreciate the guidance!