Yep! It's one of the things Ember is (or should be) best known for. The whole "don't break the web" tirade. React-router should be able to handle it (you said

Yep! It's one of the things Ember is (or should be) best known for. The whole "don't break the web" tirade. React-router should be able to handle it (you said you were using react, wasn't sure if it was in conjunction with react-router), but the documentation that describes the updating patterns of the URL isn't so easy to find... This might help though: https://github.com/rackt/react-router/issues/266 https://github.com/rackt/react-router/issues/266 (Issue from someone trying to change URL without triggering re-route, might help with saving params to URL). I was thinking that rather than how multitwitch does it (which is multitwitch.tv/<stream1>/<stream2> or something like that), you might want to pass the streams as query string params (ex. "&1=<stream1>").... But then again, you could just use their style. Also it might be smart to selected layout type.