Thanh

SetReadDeadline causes nil pointer dereference

1

### Your environment. - Version: v4.0.0-beta.29 - Browser: *include version* - Stacktrace ``` /vendor/github.com/pion/webrtc/v4/srtp_writer_future.go:108 /vendor/github.com/pion/webrtc/v4/rtpsender.go:435 ``` ### What did you do? Call `rtpSender.SetReadDeadline(t)` ### What did you expect? Don't panic...

### Expected Behavior The "Send" button is placed too close to the tabs. When I try to click it, I often miss hover over the tabs, which trigger the tooltip...