message: fix svgToDataUrl. Close
diff: @@ -240,7 +240,7 @@ export class MathPreview {
  }
  private svgToDataUrl(xml: string): string {
  - const svg64 = Buffer.from(unescape(encodeURIComponent(xml))).toString('base64')
  + const svg64 = Buffer.from(unescape(encodeURIComponent(xml)), 'binary').toString('base64')
  const b64Start = 'data:image/svg+xml;base64,'
  return b64Start + svg64
  }
  