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)

});
  describe("createPromiseCapability", function () {
    it("should resolve with correct data", async function () {
      const promiseCapability = createPromiseCapability();
      expect(promiseCapability.settled).toEqual(false);
      promiseCapability.resolve({ test: "abc" });
      const data = await promiseCapability.promise;
      expect(promiseCapability.settled).toEqual(true);
      expect(data).toEqual({ test: "abc" });
    });
    it("should reject with correct reason", async function () {
      const promiseCapability = createPromiseCapability();
      expect(promiseCapability.settled).toEqual(false);
      promiseCapability.reject(new Error("reason"));
      try {
        await promiseCapability.promise;
        
        expect(false).toEqual(true);
      } catch (reason) {
        expect(promiseCapability.settled).toEqual(true);
        expect(reason instanceof Error).toEqual(true);
        expect(reason.message).toEqual("reason");
      }
    });
  });
  describe("escapeString", function () {
    it("should escape (, ), \\n, \\r, and \\", function () {
      expect(escapeString("((a\\a))\n(b(b\\b)\rb)")).toEqual(
        "\\(\\(a\\\\a\\)\\)\\n\\(b\\(b\\\\b\\)\\rb\\)"
      );