SImpleBodyParser doesn't handle x-www-form-urlencoded properly

[rendomnet]

UPDATE: - Just tested on 6.5.0 and there is no such bug. But on 6.9.2 I have this error
UPDATE2: - Just tested on 6.8.0 and there is no such bug. But on 6.9.2 I have this error

Function onRequest gives error when receiving data on local system and no error when deployed.

I have system which was working no problem but then I updated my firebase-tools.
And now I cant test onRequest functions with my postman. When I send any data to it like

I have error UnhandledPromiseRejectionWarning.
But if I deploy this function and send this request to deployed function then there is no error.

[REQUIRED] Environment info

**firebase-tools: 5.9.2

**Platform: macOs

[REQUIRED] Test case

const functions = require('firebase-functions');

exports.helloWorld = functions.https.onRequest((request, response) => {
  console.log("Body:",	JSON.stringify(request.body))
  response.send("Hello from Firebase!");
});

[REQUIRED] Steps to reproduce

firebase serve --only functions
postman send post request with Content-Type: application/x-www-form-urlencoded {name: john}

[REQUIRED] Expected behavior

print Body: name: john
print Hello from Firebase!

[REQUIRED] Actual behavior

(node:8692) UnhandledPromiseRejectionWarning: SyntaxError: Unexpected token a in JSON at position 1
    at JSON.parse (<anonymous>)
    at FunctionsEmulator.<anonymous> (....nvm/versions/node/v8.11.1/lib/node_modules/firebase-tools/lib/emulator/functionsEmulator.js:80:46)
    at Generator.next (<anonymous>)
    at ....nvm/versions/node/v8.11.1/lib/node_modules/firebase-tools/lib/emulator/functionsEmulator.js:7:71
    at new Promise (<anonymous>)
    at __awaiter (....nvm/versions/node/v8.11.1/lib/node_modules/firebase-tools/lib/emulator/functionsEmulator.js:3:12)
    at handler (....nvm/versions/node/v8.11.1/lib/node_modules/firebase-tools/lib/emulator/functionsEmulator.js:75:43)
    at Layer.handle [as handle_request] (....nvm/versions/node/v8.11.1/lib/node_modules/firebase-tools/node_modules/express/lib/router/layer.js:95:5)
    at next (....nvm/versions/node/v8.11.1/lib/node_modules/firebase-tools/node_modules/express/lib/router/route.js:137:13)
    at Route.dispatch (....nvm/versions/node/v8.11.1/lib/node_modules/firebase-tools/node_modules/express/lib/router/route.js:112:3)
(node:8692) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:8692) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

[abeisgoat]

Fix is merged in, please re-open if you're still experiencing this once 6.9.3 is out.