hasBackdrop error: Typescript - Type 'string' is not assignable to type 'boolean'

[rancour-a]

The more recent versions of Typescript cause this error preventing the hasBackdrop functionality to work.
Need to triage and determine which version it broke in as a workaround until an update can be made.

[rancour-a]

The workaround to the error is to send a string in, however, it does not add a backdrop. [hasBackdrop]="true"