PythonEditor: WebUSB: DAPJs Error: bad response for 131 -> 132

These errors happen when using the serial REPL. Nothing specific to trigger them, if you start typing code eventually they will appear.

dap.bundle.js:1014 Uncaught (in promise) Error: Bad response for 131 -> 132
    at dap.bundle.js:1014
(anonymous) @ dap.bundle.js:1014
Promise.then (async)
(anonymous) @ dap.bundle.js:543
setInterval (async)
DAPLink.startSerialRead @ dap.bundle.js:541
(anonymous) @ python-main.js:932
Promise.then (async)
(anonymous) @ python-main.js:931
Promise.then (async)
doSerial @ python-main.js:910
(anonymous) @ python-main.js:1039
dispatch @ jquery-2.1.4.min.js:3
r.handle @ jquery-2.1.4.min.js:3
dap.bundle.js:1014 Uncaught (in promise) Error: Bad response for 132 -> 131
    at dap.bundle.js:1014
(anonymous) @ dap.bundle.js:1014
Promise.then (async)
DAPLink.serialWrite @ dap.bundle.js:578
io.onVTKeystroke @ python-main.js:965
hterm.Terminal.onVTKeystroke @ hterm_all.js:15259
hterm.Keyboard.onKeyPress_ @ hterm_all.js:6259
dap.bundle.js:1014 Uncaught (in promise) Error: Bad response for 131 -> 132
    at dap.bundle.js:1014
(anonymous) @ dap.bundle.js:1014
Promise.then (async)
(anonymous) @ dap.bundle.js:543
setInterval (async)
DAPLink.startSerialRead @ dap.bundle.js:541
(anonymous) @ python-main.js:932
Promise.then (async)
(anonymous) @ python-main.js:931
Promise.then (async)
doSerial @ python-main.js:910
(anonymous) @ python-main.js:1039
dispatch @ jquery-2.1.4.min.js:3
r.handle @ jquery-2.1.4.min.js:3