Operation System: MacOS 10.10.5
Beaker Version: 0.7.5
Every time I attempt to access any dat: URL using Beaker, the following JS alert pops up repeatedly until the tab is closed. To clarify; no actual content is displayed in the browser, just the alert popping up again and again.

I might see if I can build from source to see if I can reproduce the issue.
OK this is a little baffling, but installing it from source worked fine.
Node: v7.10.0
NPM: 5.5.1
Maybe the DMG isn't up to date?
Yes - that was an upstream bug that got fixed after the 0.7.5 release. I'm thinking about a quick 0.7.6 to fix this and https://github.com/beakerbrowser/beaker/issues/699
Happening for me (and a few others on twitter) as well. https://twitter.com/amatecha/status/919783141501411329
Happening for me too.
pfrazee, if you're still thinking about that quick 0.7.6 fix, I'd like to chime in and cast my vote as "yes please do, that would be awesome"
I think I can knock it out this evening.
Fixed in 0.7.6
Most helpful comment
I think I can knock it out this evening.