Unable to open external link (“http://127.0.0.1/authentication.html”) from button on click navigation action

[laviregen]

Use of external link “http://127.0.0.1/authentication.html” from text input toggle link result displaying expected authentication screen.

Trying doing the same thing from a button on click navigation action return instead 404 error.

Note : in this 2 cases open in the same tab option is use.