Doesn't work with masking modules

[AppwareDev]

Hi, may I ask how you achieved the masking with placeholders in this demo in the README?

I've tried using ui-mask but the input doesn't accept any characters entered via angular-keypad, depsite trying both letter and number mask definitions.

I've also tried ngMask but that doesn't support placeholders.

Great module and docs despite this, many thanks.

[AppwareDev]

I think I've solved it so I'll post the solution here for future reference:

Add this to the ui-mask input:
ui-options="{allowInvalidValue:true}"