fix bug when in String[] array come null

[Ser1ous]

Connection with issue(s)

Resolve issue #867

Connected to #???

Testing and Review Notes

1. Run application webview with form input file
2. Click on input
3. No crash app

Screenshots or Videos

To Do

• double check the original issue to confirm it is fully satisfied
• add testing notes and screenshots in PR description to help guide reviewers
• request the "UX" team perform a design review (if/when applicable)

[arianneorpilla]

Thanks for fixing this, this is like a month old PR but thought I'd mention my appreciation for having this fix. Figured it was just a missing null check somewhere that was probably super easy to spot but I couldn't for the life of me.

I couldn't import files into this web reader I'm trying to wrap into my application without crashing and this made it work. Got a new core feature into my app working with this pull request and my users are really happy for it, so I'm super grateful as I couldn't seem to get answers from the other issues for a while. It's like a one line fix but it really helped me out a lot.