Referencing "constructor" field in Angular expressions is disallowed! Expression: {0}
Occurs when an expression attempts to access an objects constructor field.
AngularJS bans constructor access from within expressions since constructor access is a known way to execute arbitrary Javascript code.
To resolve this error, avoid constructor access. As a last resort, alias the constructor and access it through the alias instead.
Example expression that would result in this error:
<div>{{user.constructor.name}}</div>