osdiab  
                
                  
                    April 14, 2020,  5:33am
                   
                  1 
               
             
            
              Hello,
I’m working on a SPA and we wanted to use embedded passwordless login, but I ran into this closed thread:
  
  
    https://auth0.com/docs/api/authentication . It works fine to initiate a passwordless flow using the POST /passwordless/start endpoint. 
However, when we try to authenticate the user, it always fails with the following error: 
Grant type ‘http://auth0.com/oauth/grant-…
   
 
We’re going to try to reimplement our Auth0 implementation to use a regular flow, but is there a specific reason why this restriction exists? Kinda frustrating we need to redo our auth structure (again), so it would be nice to have a reason for the restriction.
             
            
              1 Like 
            
            
           
          
            
            
              Hi @osdiab ,
I edited your title for clarity 
I think it is actually possible to work around this. This thread shows to how get it working:
  
  
    Yes that works! Choosing the regular web app type made it visible. 
Thanks @nicolas_sabena  for your help!
   
 
If you are curious on why we recommend universal login vs embedded, this doc talks about it:
If you want to give some feedback to our product team about your needs, we would love to hear more about your use-case.
Thanks! Let me know if you have questions.
             
            
              
            
           
          
            
              
                system  
              
                  
                    July 13, 2020, 10:18pm
                   
                  4 
               
             
            
              This topic was automatically closed 15 days after the last reply. New replies are no longer allowed.