<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <script type="text/javascript" src="FileSaver.js"></script> </head> <body> <input type="button" value="取得" onclick="apiRequest()" /> <div id="export"></div> <script> async function apiRequest() { const downloadUrl = "http://zipcloud.ibsnet.co.jp/api/search?zipcode=1620825"; const response = await fetch(downloadUrl); const blob = response.blob(