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.
return new Margin(attrs);
  }
  static mdp(attrs) {
    return new Mdp(attrs);
  }
  static medium(attrs) {
    return new Medium(attrs);
  }
  static message(attrs) {
    return new Message(attrs);
  }
  static numericEdit(attrs) {
    return new NumericEdit(attrs);
  }
  static occur(attrs) {
    return new Occur(attrs);
  }
  static oid(attrs) {
    return new Oid(attrs);
  }
  static oids(attrs) {
    return new Oids(attrs);
  }
  static overflow(attrs) {
    return new Overflow(attrs);
  }
  static pageArea(attrs) {
    return new PageArea(attrs);
  }
  static pageSet(attrs) {