message: We do not have to escape pdfFilePath fro log messages.
diff: @@ -75,7 +75,7 @@ class PdfViewerPanelSerializer implements vscode.WebviewPanelSerializer {
  }
  if (!fs.existsSync(pdfFilePath)) {
  const s = escapeHtml(pdfFilePath)
  - this.extension.logger.addLogMessage('Error of restoring PDF viewer: file not found ${s}.')
  + this.extension.logger.addLogMessage(`Error of restoring PDF viewer: file not found ${pdfFilePath}.`)
  panel.webview.html = `<!DOCTYPE html> <html lang="en"><meta charset="utf-8"/><br>File not found: ${s}</html>`
  return Promise.resolve()
  }
  