Open in same tab - iFrame

Hi!

I’m including a form in an iFrame and want it to open in the current tab I’m in. Right now it opens it in another tab. The form looks like this (url https://vespamunich.wixsite.com/mysite)

I have set target=“_parent” on the form and it works great when I run it outside wix (https://munich.dev.bookvespa.com/iframe/availability-form)

The error message I get is the following:


Would be so glad if someone has an answer to this!

Many thanks!