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)

let width = null;
      let height = null;
      if (this.caption) {
        const { w, h, isBroken } = this.caption[$getExtra](availableSpace);
        
        
        if (isBroken && this[$getSubformParent]()[$isThereMoreWidth]()) {
          return HTMLResult.FAILURE;
        }
        width = w;
        height = h;
        if (this.ui.checkButton) {
          switch (this.caption.placement) {
            case "left":
            case "right":
            case "inline":
              width += this.ui.checkButton.size;
              break;
            case "top":
            case "bottom":
              height += this.ui.checkButton.size;
              break;
          }
        }
      }
      if (width && this.w === "") {
        this.w = Math.min(
          this.maxW <= 0 ? Infinity : this.maxW,
          Math.max(this.minW, width + marginH)
        );