Attach (recommended) or Link to PDF file here:
[Form_MGT-7.pdf](https://github.com/mozilla/pdf.js/files/6768253/Form_MGT-7.pdf)

When we try to open the above pdf, we get in the console:
```
Warning: XFA - an error occured during parsing and binding: TypeError: x.include is not a function
```
which is caused by a typo:
https://github.com/mozilla/pdf.js/blob/b9e84ba70ec5a4a30333b9092f316c9ec7b7f079/src/core/xfa/config.js#L174
 
So fixing the typo allows to open the pdf but there is only 1 page when we have 9 in using masterpdfeditor.
this[$extra].columnWidths = columnWidths;
        this[$extra].currentColumn = 0;
      }
    }
    const style = toStyle(
      this,
      "anchorType",
      "dimensions",
      "position",
      "presence",
      "border",
      "margin",
      "hAlign"
    );
    const classNames = ["xfaExclgroup"];
    const cl = layoutClass(this);
    if (cl) {
      classNames.push(cl);
    }
    if (isPrintOnly(this)) {
      classNames.push("xfaPrintOnly");
    }
    attributes.style = style;
    attributes.class = classNames;
    if (this.name) {
      attributes.xfaName = this.name;
    }
    let failure;
    if (this.layout === "lr-tb" || this.layout === "rl-tb") {
      for (