Error login with LINE APP

They were able to login with id and pass but not able to login with LINE app.
I have found the cause. When I use ARC Browser APP to log in and my default browser is Safari, when I select the Line app to login, then login successfully, the Line app will callback to the safari browser, the error will appear. This is the error I left below:

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Thank you for providing the details! Here’s the information for the support team regarding your issue:

  • SDK Details: Plug n Play
  • SDK Version Number: (not provided)
  • Platform: ARC Browser App with default browser set to Safari
  • Issue: Unable to login with LINE app, but able to login with ID and password.
  • Error Message: Screenshot attached (please ensure to include the image in your support ticket).

Since the issue occurs when using the LINE app with the ARC Browser and callbacks to Safari, it might be related to how the authentication flow is managed between the two apps. Please consider checking browser settings or providing additional logs from the console if possible.

If you’re still facing issues after trying to resolve this with the provided information, please let the support team know!

Note: This response was generated by an AI bot and may require further verification. The Web3Auth support team has tracked this issue and will be responding as soon as possible.

Hey @gotechdevelop,

This issue could likely be resolved by using your default browser or switching your default browser to ARC before trying again. Think of it this way—if your login process started in ARC, but LINE redirected you to Safari (your default browser), Safari wouldn’t have the full context of the ongoing session, which could cause the issue.

Try setting ARC as your default browser and see if that helps. Let me know how it goes!