viacep: inject proxy at browser

Author: lucianopf

src/services/index.js

@@ -15,4 +15,4 @@ function injectProxy (Service) {
 
 export const CepAbertoService = isBrowser() ? injectProxy(CepAberto) : CepAberto
 export const CorreiosService = isBrowser() ? injectProxy(Correios) : Correios
-export const ViaCepService = ViaCep
+export const ViaCepService = isBrowser() ? injectProxy(ViaCep) : ViaCep

src/services/viacep.js

@@ -3,8 +3,8 @@
 import fetch from 'isomorphic-unfetch'
 import ServiceError from '../errors/service.js'
 
-export default function fetchViaCepService (cepWithLeftPad) {
-  const url = `https://viacep.com.br/ws/${cepWithLeftPad}/json/`
+export default function fetchViaCepService (cepWithLeftPad, proxyURL = '') {
+  const url = `${proxyURL}https://viacep.com.br/ws/${cepWithLeftPad}/json/`
   const options = {
     method: 'GET',
     mode: 'cors',