Attach (recommended) or Link to PDF file here:
See pdf in https://github.com/mozilla/pdf.js/issues/3109

Configuration:
- Web browser and its version: Firefox nightly
- Operating system and its version: Windows 10
- PDF.js version: builtin viewer

Steps to reproduce the problem:
1. Look at outlines

What is the expected behavior? (add screenshot)
![image](https://user-images.githubusercontent.com/5641725/141514798-0e656865-1cbf-4fb8-a89b-530d36da23c9.png)

What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/5641725/141514740-c95e0237-8bf4-4129-a4a5-cb2ea5a3f4df.png)

const loadingTask = getDocument(filename);
      loadingTasks.push(loadingTask);
      const pdf = await loadingTask.promise;
      const page = await pdf.getPage(1);
      const viewport = page.getViewport({ scale: 1.2 });
      const canvasAndCtx = CanvasFactory.create(
        viewport.width,
        viewport.height
      );
      const renderTask = page.render({
        canvasContext: canvasAndCtx.context,
        canvasFactory: CanvasFactory,
        viewport,
      });
      await renderTask.promise;
      const data = canvasAndCtx.canvas.toDataURL();
      CanvasFactory.destroy(canvasAndCtx);
      return data;
    }
    afterEach(async function () {
      // Issue 6205 reported an issue with font rendering, so clear the loaded
      // fonts so that we can see whether loading PDFs in parallel does not
      // cause any issues with the rendered fonts.
      const destrongTask) {