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.
: new Edge({});
    const edgeStyle = edge[$toStyle]();
    const style = Object.create(null);
    if (this.fill && this.fill.presence === "visible") {
      Object.assign(style, this.fill[$toStyle]());
    } else {
      style.fill = "transparent";
    }
    style.strokeWidth = measureToString(
      edge.presence === "visible" ? edge.thickness : 0
    );
    style.stroke = edgeStyle.color;
    const corner = this.corner.children.length
      ? this.corner.children[0]
      : new Corner({});
    const cornerStyle = corner[$toStyle]();
    const rect = {
      name: "rect",
      attributes: {
        xmlns: SVG_NS,
        width: "100%",
        height: "100%",
        x: 0,
        y: 0,
        rx: cornerStyle.radius,
        ry: cornerStyle.radius,
        style,
      },
    };
    const svg = {