Beagle Term is serial terminal emulator.Bug Report : https://github.com/beagleterm/beagle-term/issues
Beagle Term is an open-source serial terminal emulator written entirely in JavaScript. You can explore your serial device via RS232 interface. It's a plugin free and based on chromium-hterm project, http://goo.gl/6e9UE.
Thanks to Tyler Hughes(https://github.com/RandomlyKnighted),
Now BeagleTerm support neat UI, and more options for RS232.