panic: interface conversion: interface {} is *jwt.Token, not *jwt.Token (types from different packages)

[cleveng]

filename: A.go
user := ctx.Locals("user").(*jwt.Token)
// panic: interface conversion: interface {} is *jwt.Token, not *jwt.Token (types from different packages)

the code copy auth-jwt from the demos , today when i want to get auth message show the error .
login method use the lib of github.com/dgrijalva/jwt-go .

when i change the file A.go, important "github.com/form3tech-oss/jwt-go" to replace old jwt-go.
it is work. not panic error .
Why ?

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[hi019]

The new Fiber JWT library uses form3tech as you've seen because of a vulnerability in the previous JWT package: dgrijalva/jwt-go#428 . Is that what you mean?

[Intevel]

Facing the same issue