working button for viewing collection in vivliostyle

src/BookBuilder.jsx

@@ -163,17 +163,16 @@ export class BookBuilder extends React.Component {
   }
 
   handleHTMLToEpub (bookId) {
-    const { htmlToEpub } = this.props.actions
     const { book } = this.props
+    const { htmlToEpub } = this.props.actions
+
     htmlToEpub(book.id).then((res) => {
-      console.log('res', res)
-      const path = res.path
-      const url = 'localhost:3000/vivliostyle/viewer/vivliostyle-viewer.html#b=' + path
-      // this.props.history.push()
-      window.location = '/vivliostyle/viewer/vivliostyle-viewer.html#b=/uploads/' + path
+      const path = res.extractedEpubPath
+      const url = `
+        /vivliostyle/viewer/vivliostyle-viewer.html#b=/uploads/${path}
+      `
+      window.open(url, '_blank')
     })
-    // console.log('props', this.props)
-    // console.log('actions', this.props.actions)
   }
 
   render () {