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Email subscription form doesn’t work — Mailchimp Integration [SOLVED (kind of)]

Hi, Webflowers!

I’m trying to connect a form I created on my website to Mailchimp. However, I constantly get an error. I’ve checked the console in Google Chrome and it says error “net::ERR_UNKNOWN_URL_SCHEME”.

Here is a screenshot:

I did everything according to the guide: the action URL link is a proper one, method POST, configured the form, and the tags are the same.

Hope you can help!

Here is my read-only link: Webflow -

Thank you for your replies in advance!

EDIT: I changed “https” to “http” in the action URL. Now, the form seems to work, however, there is a notification that the form is not secure. I guess it happens because I’m using “http” instead of secure “https”.


EDIT 1: So, I changed “http” to “https” back, so the form will be seen as secure. However, by doing so, I still get the same error that I mentioned above. I’ve tried to go to the action URL link directly, and it does work — I see my newsletter subscription there.

Here is a screenshot of my form in Mailchimp if it does matter:

P.S: I did try adding/removing the checkbox on my form, there was a bug — I don’t know how to implement a checkbox to Mailchimp, but that’s another story.

EDIT 2 — SOLUTION: So I found an unexpected solution by @PixelGeek on a Webflow Forum — I removed “https://” to “//”. It works now, though I don’t know what impact will it have on my website, form, or Mailchimp’s newsletter. Now I need to figure out how to use custom success message instead of Mailchimp’s one, haha.