mixed content bug fixed

src/tjts5901/frontend/mainfront.js

@@ -77,7 +77,7 @@ const getAuctions = async ()=>{
             }
         }
         console.log("website root address:", window.location.origin )
-        let response = await fetch('/auction_item', options)
+        let response = await fetch(window.location.origin.concat('/auction_item'), options)
         let text = await response.text()
         let items  = await JSON.parse(JSON.parse(text))