The following code is flagged as dead (since it's *replacing* rather than updating the existing Object):
https://github.com/mozilla/pdf.js/blob/4483cba72410027acf46630ebf252ae529704476/src/core/xfa/template.js#L2336-L2339
according to the alert in https://github.com/mozilla/pdf.js/security/code-scanning/103?query=ref%3Arefs%2Fheads%2Fmaster

Looking at the surrounding code, I can see a couple of possibilities here:
 1. This is indeed just dead code, which should be removed.
 2. The code should be moved up, and placed just *above* the previous block instead.
 3. There should be other, more invasive, changes made to this code...

/cc @calixteman Which solution is correct here?
Assuming it's either option 1 or 2, I can submit a patch to fix this.
const left = measureToString(this.x);
    const top = measureToString(this.y);
    const style = {
      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 {