Saying something where emojis cut of can make surrogate characters

Emojis can cut of in speech bubbles, revealing surrogate characters.

Steps to Reproduce

  1. Run the following script:
    untitled script pic (35)

  2. Take note to whether �'s were displayed.

Observed Behavior

�'s were displayed.

Expected Behavior

No �'s were displayed.

you can do the same thing with an emojispam on youtube