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Namecheap does not offer HTTPS for redirects. It would be better to implement the redirect at your hosting company so that they can do HTTPS for the redirect. This page has instructions about half way down for adding both www and no-www to Firebase and setting one to redirect to the other https://www.allwebtuts.com/add-a-custom-domain-on-google-firebase-...


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The short answer is that your web hosting provider is not running an HTTPS server on the IP address associated with their webserver. (As indicated by ERR_CONNECTION_REFUSED ). I posit that if this is a default Namecheap setup that this is something they would need to rectify, but they may not be in a position to do so due to the substantial added complexity ...


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