Couldn't decode request message inside Postman

[a85]

Found this error while trying to debug something:

Error in event handler for runtime.onMessageExternal: TypeError: Cannot read property 'length' of undefined
    at Object.ArrayBufferEncoderDecoder.decode (chrome-extension://mgicbpdmnpnfckafakeoiomkjcplfcld/js/libs/base64-arraybuffer.js:29:30)
    at Backbone.Model.extend.getRawData (chrome-extension://mgicbpdmnpnfckafakeoiomkjcplfcld/js/requester.js:8051:56)
    at Backbone.Model.extend.getRequestJSON (chrome-extension://mgicbpdmnpnfckafakeoiomkjcplfcld/js/requester.js:8077:31)
    at Backbone.Model.extend.onMessageExternal (chrome-extension://mgicbpdmnpnfckafakeoiomkjcplfcld/js/requester.js:8003:33)
    at c (chrome-extension://mgicbpdmnpnfckafakeoiomkjcplfcld/js/libs/backbone-min.js:1:2148)
    at a.Events.trigger (chrome-extension://mgicbpdmnpnfckafakeoiomkjcplfcld/js/libs/backbone-min.js:1:1335)
    at chrome-extension://mgicbpdmnpnfckafakeoiomkjcplfcld/js/requester.js:775:25
    at Function.target.(anonymous function) (extensions::SafeBuiltins:19:14)
    at Event.dispatchToListener (extensions::event_bindings:394:22)
    at Event.dispatch_ (extensions::event_bindings:378:27) 

Not sure if the error is on the Postman side or something is going wrong in sending it from Interceptor. The request shows up inside DevTools though.

[prakhar1989]

Any pointers on how to replicate this?