PMUI search does not error/warn on HTTP source

[Nigusu-Allehu]

NuGet Product Used

Visual Studio Package Management UI

Product Version

17.14

Worked before?

No response

Impact

None

Repro Steps & Context

Add a nuget.config file that looks like the following

<?xml version="1.0" encoding="utf-8"?>
<configuration>
  <packageSources>
    <clear />
        <add key="nuget.org" value="http://api.nuget.org/v3/index.json" />
  </packageSources>
</configuration>

Go to the PMUI and try doing a search. The search proceeds even though the source is HTTP. No warnings or errors are shown on search. However, there is an error that comes from restore in the Error list window

Verbose Logs