Websites not working in Azure Static Web App. Error message ERR_CERT_COMMON_NAME_INVALID

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I have a static webpage that I created with azure static web apps :

ambitious-cliff-052ac5f03.3.azurestaticapps.net

I configured this with my IP provider using CNAME and A.

My azure domains look like this :

enter image description here

And the domain configuartion on my IP provider looks like this :

enter image description here

If I go to “frontangle.com” it works, (but sometimes it doesnt!). And if I go to “www.frontangle.com” it never works.

Usually if there is a SSL certificate issue you can still access the website but there is just an annoying warning in the top.

But now the error ERR_CERT_COMMON_NAME_INVALID is not allowing me to do anything. Instead of a continue button there is a reload button. Or a screen like this :

enter image description here

Can anyone help me out here? I am confused as to why this has to be so complicated for a simple website.

  • 1

    Doesn’t seem like the automatic cert supports wildcard, have you tried explicitly adding www.frontangle.com for the custom domain? You can’t ignore the error because HSTS is enabled (there’s some unsafe mode workaround by typing some word)

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  • Im unsure what that would mean. Do you mean I add “www.frontangle.com” in the azure console as CNAME or TXT?

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  • As CNAME, TXT isn’t used for resolution.

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  • its not possible in azure. If I try and create a CNAME entry it says : CNAME Record is invalid. Please ensure the CNAME record has been created.

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  • You need the CNAME record in both azure and your IP provider

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