Bugfix: eth_getCode add second parameter "latest"

with it infura "Geth/v1.8.27-omnibus-c94f741c/linux-amd64/go1.11.1" returns an error:
"code": -32602, "message": "missing value for required argument 1"
Parity seems to have no problem with the missing parameter

src/utils/index.js

@@ -124,7 +124,7 @@ module.exports = {
 
   getCode: async (ethereumProvider, address) => {
     const method = 'eth_getCode'
-    const params = [address]
+    const params = [address, 'latest']
 
     const code = await safeSend(ethereumProvider, {
       jsonrpc: '2.0',