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This Site Can’t Provide a Secure Connection Localhost Sent An Invalid Response In ASP Classic Website

Good afternoon fellow programmers!

In the event that you added an ASP Classic site to Visual Studio and when you debug or run the site, it produced an error such as "This site can’t provide a secure connection localhost sent an invalid response. Try running Windows Network Diagnostics. ERR_SSL_PROTOCOL_ERROR". The fix to this error is to comment or remove the rewrite rule in web.config. A sample rewrite node looks like this in web.config.
<?xml version="1.0"?>
<configuration>
  <system.webServer>
    <!--<rewrite>
      <rules>
        <rule name="Redirect to HTTPs"  stopProcessing="true">
          <match url="(.*)"/>
          <conditions>
            <add input="{HTTPS}" pattern="^OFF$"/>
          </conditions>
          <action type="Redirect" url="https://{HTTP_HOST}/{R:1}" redirectType="SeeOther"/>
        </rule>
      </rules>
    </rewrite>-->
  </system.webServer>
  <system.web>
    <compilation debug="true"/>
  </system.web>
</configuration>

Cheers! :)

Comments

  1. Replies
    1. Hi, the solution is to remove or comment out the node in web.config. See updated answer above.

      Delete

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