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 RefElement(attrs);
  }
  static script(attrs) {
    return new Script(attrs);
  }
  static setProperty(attrs) {
    return new SetProperty(attrs);
  }
  static signData(attrs) {
    return new SignData(attrs);
  }
  static signature(attrs) {
    return new Signature(attrs);
  }
  static signing(attrs) {
    return new Signing(attrs);
  }
  static solid(attrs) {
    return new Solid(attrs);
  }
  static speak(attrs) {
    return new Speak(attrs);
  }
  static stipple(attrs) {
    return new Stipple(attrs);
  }
  static subform(attrs) {
    return new Subform(attrs);
  }
  static subformSet(attrs) {