fetch()

fetch.js

var hear=new Headers({
  "Content-Type":"image/png",
  "Accept":"*/*",
  "Connection":"keep-alive"
})
var myinit2={
  method:"GET",
  header:hear
}
fetch("/img/icons/logo.png",myinit2).then(response=>{if(response.ok){return response.blob();}}).then(data=>console.log(URL.createObjectURL(data)));

// できない・・・ちゃんと動くけど

function testes(str="error"){
  console.log(str);var imp=document.getElementById("originalTextArea");imp.value=str;
}
function translate(cb=testes){
  const he=new Headers({
    "Accept":"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
    "Accept-Encoding": "gzip, deflate",
    "Cookie": "optimizelyEndUserId=oeu1466180228566r0.8957759570224985; _ga=GA1.2.1775585478.1466180232; mfids=uid1[746:0100007F87226457F05ED061023C378F]uid3[0100007F87226457F05ED061023C378F]; __gads=ID=a0070c832644b8b0:T=1466180247:S=ALNI_MZDcqCZhEcY-xGN2qN2TveqOW7nVQ; qsf=true; optimizelySegments=%7B%222007740035%22%3A%22ff%22%2C%222020280600%22%3A%22false%22%2C%222022830235%22%3A%22search%22%2C%224946901459%22%3A%22none%22%7D; optimizelyBuckets=%7B%7D",
    "Connection": "keep-alive"
  })
  const forms=new FormData();
  forms.set("originalText","preciedence");
  forms.set("lp","EJ");
  const init={
    method:"post",
    header:he,
    body:forms
  }
  fetch("/",init).then(response=>{
    if(response.ok){
      return response.text();
    }else{
      throw Error("eeeeeee rrrrrrorroror");
    }
  }).then(data=>{
    cb(data);
  }).catch(err=>{
    console.log(err);
  })
}
translate();