Is it because of https that the browser says "website is not secure"?

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after the project written by my Vue.js is uploaded to the remote server, it says, "the website is not secure".

is it because https is not configured?

Browser vue.js

Mar.13,2021

Yes, generally speaking, the certificate does not match the domain name, or the signed certification authority is not on the browser's security certificate list.

go to https

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