v148 · PWA · demo

Manifest Config Explorer

Build the old manifest, new manifest, and web-app-origin-association file side by side. The live validator checks the Chrome 148 origin-migration handshake: migrate_to, migrate_from, explicit app IDs, same-site origins, and old-origin permission.

Configure the handshake

Scenarios

Generated files

Old origin manifest


      

      

        
New origin manifest

        

      

      

        
Old origin association file

        

      

    

  


  

    
Validation result

    

    

  


  

    
Field reference

    

      
        

          Field
          Location
          Role in the handshake
        

      
      
        

          migrate_to.id
          Old manifest
          Optional proactive signal naming the new app ID.
        

        

          migrate_from[].id
          New manifest
          Required claim naming the old app ID. The new manifest must also have its own explicit id.
        

        

          install_url
          Both migration entries
          Page that links to the corresponding manifest, useful if old app URLs redirect after the move.
        

        

          allow_migration
          Old origin association file
          Permission that lets the old origin approve the new app ID as the migration target.
        

      
    

  


  

    
references