Check to see if startContainer of range looks like a node before returning range

[tedtate]

Attempted work-around for: https://bugzilla.mozilla.org/show_bug.cgi?id=1258484
Fixes: #209

Aside: Can we 🔥 this implementation of getDOMRange or is it still needed - https://github.com/basecamp/trix/blob/master/src/trix/observers/selection_change_observer.coffee#L48

[javan]

Thanks @tedtate! I actually started looking into this after you opened the issue, but never pushed my fix. What do you think of #215?

I'm pretty sure it's the same issue as https://bugzilla.mozilla.org/show_bug.cgi?id=208427, which is merely 13 years old.

Can we 🔥 this implementation of getDOMRange or is it still needed

Yup, that can be switched over to the shared helper.

[tedtate]

Yah, your fix looks awesome. I will close this.

Thanks for looking in to it!