Why can't the French word url be parsed by Node.js V6?

I meet one problem, this url 'localhost:4020/share/Fr?chars=ECYCÉDN'

with French word cannot be parsed in Node V6.10.0

, however it can be parsed correctly in Node V0.10.42

.

Here is more details on my codes

• Secondary software for Express
  
  

  app.use bodyParser.urlencoded({ extended: false })
  app.use bodyParser.json({ limit: '20mb' })
  app.use bodyParser.urlencoded({ limit: '20mb', extended: false })
  
        
  
          
          
          
        
  
      

• And output chars
  
  to the above router URL

  router = express.Router()
  router.get '/share/:lang', (req, res, next) ->
       console.log(req.query.chars)
  
        
  
          
          
          
        
  
      

I am testing this server with curl 'localhost:4020/share/Fr?chars=ECYCÉDN'

and the results are

• Node v0.10.42

  {"chars":"ECYCÉDN"}
  
  

• Node v6.10.0

  {"chars":"ECYCÃ DN"}
  
  

Express version 4.15.2

I want to know why this French word cannot be parsed correctly in Node V6.10.0?

I think it might be a character encoding issue. However, I'm trying to use querystring.unescape

or querystring.escape

querystring

, it doesn't work.

Update

When I try to output console.log(JSON.stringify(req.query))

in the router '/share/:lang'

, the result is {"chars":"ECYCÃ DN"}

and the length chars

is 8

.