message: fix url for internal pdf viewer in code-server
diff: @@ -114,8 +114,8 @@ export class PdfViewerPanelService {
  static async getPDFViewerContent(pdfFile: vscode.Uri): Promise<string> {
  const serverPort = lw.server.port
  // viewer/viewer.js automatically requests the file to server.ts, and server.ts decodes the encoded path of PDF file.
  - const origUrl = `http://127.0.0.1:${serverPort}/viewer.html?file=${this.encodePathWithPrefix(pdfFile)}`
  - const url = await vscode.env.asExternalUri(vscode.Uri.parse(origUrl, true))
  + const origUrl = await vscode.env.asExternalUri(vscode.Uri.parse(`http://127.0.0.1:${serverPort}`, true))
  + const url = vscode.Uri.parse(`${origUrl}/viewer.html?file=${this.encodePathWithPrefix(pdfFile)}`,true)
  const iframeSrcOrigin = `${url.scheme}://${url.authority}`
  const iframeSrcUrl = url.toString(true)
  await this.tweakForCodespaces(url)
  