v147 · PWA · demo

Manifest Config Explorer

Build the PWA origin migration handshake with the current manifest fields: migrate_from on the new app, allow_migration in the old origin association file, optional migrate_to on the old app, and install_url for redirect-safe updates.

Migration scenarios

Each button regenerates the manifest JSON and validation result. The checks model the current same-site handshake; they are not generic PWA capability probes.

eligible

Migration can be suggested to the user

The new manifest names the old app, the old origin explicitly authorizes the new app, and both origins are HTTPS and same-site.

New app manifest https://files.example.com/app/manifest.json 

      


      

        

          Old origin association
          https://drive.example.com/.well-known/web-app-origin-association
        

        

      


      

        

          Old app manifest
          https://drive.example.com/manifest.json
        

        

      

    


    

      

        live validation
        
Handshake requirements

        
    
          
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            pending
            HTTPS origins
          
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            pending
            Same-site migration
          
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            pending
            Destination manifest id
          
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            pending
            migrate_from declaration
          
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            pending
            allow_migration authorization
          
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            pending
            User-visible behavior
          
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            pending
            Redirect-safe install_url
          
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Field reference

    

      
        

          Field or file
          Where it lives
          What Chrome uses it for
        

      
      
        

          migrate_from
          New app manifest
          Declares the old app identity that may migrate into this destination app.
        

        

          /.well-known/web-app-origin-association
          Old origin
          Authorizes the destination app with allow_migration: true, preventing unilateral takeover by another site.
        

        

          migrate_to
          Old app manifest
          Optional proactive signal that points an installed legacy app at the destination app.
        

        

          behavior
          Inside a migrate_from object
          suggest allows an ignorable update; force blocks launch until the user updates or uninstalls.
        

        

          install_url
          migrate_from or migrate_to object
          Keeps a non-redirecting install page available when old app routes redirect to the new origin.
        

      
    

  


  

    
references

    
  


  

    
implementation reference

    
Need the exact API surface, compatibility boundaries, errors, lifecycle, and source links? Read the matching gendn reference ↗