First Person Controller wont stop in web build if w,a,s,d is used

Ive been running into a strange issue for a while now, and I finally cant ignore it anymore.

I have a simple scene using the standard first person controller. It works fine in the editor, but when I build for web, if I press any of the wasd keys, the character will not stop moving in that direction. Even stranger is that if I use the arrow keys, it works fine. One more thing I've found is that if I hold control and use the wasd keys, it works as intended.

-My input settings are at their default, so wasd and the arrow keys both control movement. -I tried a different keyboard, so that's not it. -I tried making a new project with a fresh controller. no luck.

Could it be some setting on my computer that is causing the issue? Maybe a project setting that acts like a control key toggle?

I would really appreciate any help or ideas you guys might have.

Thanks!! -A