Problem with mimeMap for "."

Solved .

Renewal broke with an IIS error. I isolated it to

  <mimeMap fileExtension="." mimeType="text/json" />

I replaced it in the letsencrypt prototype directory with

  <mimeMap fileExtension="" mimeType="application/octet-stream" />
2 Likes

Hi @BobFrankston

happy to read that you found a solution.

The standard setting is something like

<configuration>
    <system.webServer>
        <staticContent>
            <mimeMap fileExtension="." mimeType="text/plain" />
        </staticContent>
    </system.webServer>
</configuration>

perhaps only in the /.well-known/acme-challenge - directory.

That’s what I thought (though I don’t know why the template said json – but it shouldn’t matter). But the “.” stopped working and I had to use “”. Still don’t know why. Till the next failure…

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