The wasm errors shouldn't be showstoppers, it's just alerting that it's using a less efficient method to download the execution engine to the browser. I wouldn't expect a font download issue to cause issues other than perhaps odd font layouts. Are there any other issues with resource download shown in the network tab of the browser dev tools?
I'm unfamiliar with firebase but assume it's more or less a standard hosting service.
G Web apps don't run on a server, they're merely files that get sent to a browser when requested and then run in the browser.
~ The wizard formerly known as DerrickB ~