Attach (recommended) or Link to PDF file here:
issue13500 (in test corpus)

This regressed when landing #13566. 

What is the expected behavior? (add screenshot)
<img width="664" alt="image" src="https://user-images.githubusercontent.com/942640/122467522-7bc8aa80-cf6f-11eb-9d4d-311eb7c64fb2.png">


What went wrong? (add screenshot)
![image](https://user-images.githubusercontent.com/942640/122467565-85eaa900-cf6f-11eb-9c10-8a8686ed440c.png)


const left = measureToString(this.x);
    const top = measureToString(this.y);
    const style = {
      position: "absolute",
      left,
      top,
      width: measureToString(this.w),
      height: measureToString(this.h),
    };
    const classNames = ["xfaContentarea"];
    if (isPrintOnly(this)) {
      classNames.push("xfaPrintOnly");
    }
    return HTMLResult.success({
      name: "div",
      children: [],
      attributes: {
        style,
        class: classNames,
        id: this[$uid],
      },
    });
  }
}
class Corner extends XFAObject {