The «Square» payment form works only if your checkout page is loaded over HTTPS

checkout
square
https
(Dmitry Fedyuk) #1

https://docs.connect.squareup.com/articles/adding-payment-form/#settinguppaymentform

The payment form must be generated on a webpage that uses HTTPS, with one exception: you can test on localhost without using HTTPS.

I have added a warning, when a payment form is loaded over HTTP on non-localhosts:

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