message: Remove redundant close pdf operation on refresh
diff: @@ -376,8 +376,7 @@ See https://github.com/adobe-type-tools/cmap-resources
  scale:PDFViewerApplication.pdfViewer.currentScaleValue,
  scrollTop:document.getElementById('viewerContainer').scrollTop,
  scrollLeft:document.getElementById('viewerContainer').scrollLeft}))
  - PDFViewerApplication.close()
  - .then(() => PDFViewerApplication.open(`/pdf:${decodeURIComponent(file)}`))
  + PDFViewerApplication.open(`/pdf:${decodeURIComponent(file)}`)
  break
  case "position":
  PDFViewerApplication.pdfViewer.currentScaleValue = data.scale
  