Unable to copy selected content in readonly field.

[wannesdebacker]

• If readonly is added to an input with a mask, then it's impossible to copy that content.

• For example

If you manually add readonly to the this plugin example site: https://robinherbots.github.io/Inputmask/ you can see that the content will not copy (it is however selectable (which is good)). Normal implementation of readonly example: https://jsfiddle.net/wannesdebacker/a2z18tpr/ (only input is disabled, but you can still copy).

So readonly should allow copy-ing.

• OS: All
• Browser: All
• Inputmask version: Latest