Share Screen Issue

[mrMUB]

I have been trying to find a solution to an issue where when person A shares their screen, person B is able to see it. However, if person B refreshes the screen while person A is still sharing their screen, person B is no longer able to see the shared screen. This appears to be a known issue:

From Example: basic-multi-streams.html
Known issues with this demo, some cases are not handled:
- If participant A shares their screen, the partipant B sees the other participant's screen.
When participant A stops their screen share, the other participant will see a frozen screen, the last image received.
- If participant A starts screen share, stops, and restarts the screen share, the other participant won't see it.

Can anyone offer any assistance in resolving this problem?

[vincentfretin]

Changes in #421 fix the issues.