Attach (recommended) or Link to PDF file here:
http://education.ohio.gov/getattachment/Topics/Special-Education/Preschool-Special-Education/ETR-Preschool-Planning-Form.pdf.aspx

- Web browser and its version: Firefox 89.0.1
- Operating system and its version: Windows 10 10.0.19043.1052
- PDF.js version: commit 5d251a3a3e7bfaa8fbfa07f0b7f9901eb3f999d9
- Is a browser extension: No

Steps to reproduce the problem:
1. Enable XFA support
2. Open form

What is the expected behavior? (add screenshot)
Shapes stay inside table cells
![image](https://user-images.githubusercontent.com/7104454/122572782-1252a580-d01c-11eb-9d0f-5fed46d6f2fe.png)

What went wrong? (add screenshot)
Shapes fall outside cells (among other issues)
![image](https://user-images.githubusercontent.com/7104454/122572885-2d251a00-d01c-11eb-8863-fa3b9969f0ea.png)

"ksc-5601",
          "none",
          "shift-jis",
          "ucs-2",
          "utf-16",
        ].includes(k) || k.match(/iso-8859-[0-9]{2}/),
    });
    this.use = attributes.use || "";
    this.usehref = attributes.usehref || "";
    this.xdpContent = attributes.xdpContent || "";
    this.encrypt = null;
    this.encryptData = new XFAObjectArray();
    this.signData = new XFAObjectArray();
  }
}
class Template extends XFAObject {
  constructor(attributes) {
    super(TEMPLATE_NS_ID, "template",  true);
    this.baseProfile = getStringOption(attributes.baseProfile, [
      "full",
      "interactiveForms",
    ]);
    this.extras = null;
    
    
    
    
    this.subform = new XFAObjectArray();
  }
  [$finalize]() {