message: Add base-uri 'none';
diff: @@ -140,7 +140,7 @@ export class MathPreviewPanel {
  return `<!DOCTYPE html>
  <html lang="en">
  <head>
  - <meta http-equiv="Content-Security-Policy" content="default-src 'none'; script-src ${webview.cspSource}; img-src data:; style-src 'unsafe-inline';">
  + <meta http-equiv="Content-Security-Policy" content="default-src 'none'; base-uri 'none'; script-src ${webview.cspSource}; img-src data:; style-src 'unsafe-inline';">
  <meta charset="UTF-8">
  <style>
  body {
  