How to configure Blazor with Windows Authentication and IIS - iis

Question

I'm having issues with my Blazor app and Windows Authentication after getting IIS hooked up to it. I've been through the steps in this guide however, everytime I go to the site, I get a chrome dialog asking me for a username and a password. My understanding is that IIS should be handling my windows creds and forwarding it to the site.
Expected result:
Actual result:
I see that IISExpress will run the website as my local domain user, which works just fine and the app lets me in. When I run the site from IIS (when it uses the apppool user) is what I run into issues. I need to be able to authenticate as my user without changing the user that the Apppool runs as.
Some information of the project
launchSettings.json:
{
"iisSettings": {
"windowsAuthentication": true,
"anonymousAuthentication": false,
"iis": {
"applicationUrl": "https://customersupport.dev.local",
"sslPort": 0
},
"iisExpress": {
"applicationUrl": "http://localhost:13394",
"sslPort": 44318
}
},
"profiles": {
"IIS Express": {
"commandName": "IISExpress",
"launchBrowser": true,
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
}
},
"Shelby.CustomerSupport": {
"commandName": "Project",
"launchBrowser": true,
"environmentVariables": {
"ASPNETCORE_ENVIRONMENT": "Development"
},
"dotnetRunMessages": "true",
"applicationUrl": "https://localhost:5001;http://localhost:5000"
},
"IIS": {
"commandName": "IIS"
}
}
}
web.config:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<location path="." inheritInChildApplications="false">
<system.webServer>
<security>
<authentication>
<anonymousAuthentication enabled="false" />
<windowsAuthentication enabled="true" />
</authentication>
</security>
<handlers>
<add name="aspNetCore" path="*" verb="*" modules="AspNetCoreModuleV2" resourceType="Unspecified" />
</handlers>
<aspNetCore processPath="bin\Debug\net5.0\Shelby.CustomerSupport.exe" arguments="" stdoutLogEnabled="false" hostingModel="InProcess">
<environmentVariables>
<environmentVariable name="ASPNETCORE_HTTPS_PORT" value="443" />
<environmentVariable name="ASPNETCORE_ENVIRONMENT" value="Development" />
</environmentVariables>
</aspNetCore>
</system.webServer>
</location>
</configuration>
What am I missing here?