Fixing Errors with SPFx Services in Application Customizer During Debugging

Before you deploy your application, you usually want to debug or test it. During development, you need to add ?loadSPFX=true&debugManifestsFile=https%3A%2F%2Flocalhost%3A4321%2Ftemp%2Fmanifests.js to the URL to test your solution. If you're working ...