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.
"ksc-5601",
          "none",
          "shift-jis",
          "ucs-2",
          "utf-16",
        ].includes(k) || k.match(/iso-8859-[0-9]{2}/),
    });
    this.use = attributes.use || "";
    this.usehref = attributes.usehref || "";
    this.xdpContent = attributes.xdpContent || "";
    this.encrypt = null;
    this.encryptData = new XFAObjectArray();
    this.signData = new XFAObjectArray();
  }
}
class Template extends XFAObject {
  constructor(attributes) {
    super(TEMPLATE_NS_ID, "template",  true);
    this.baseProfile = getStringOption(attributes.baseProfile, [
      "full",
      "interactiveForms",
    ]);
    this.extras = null;
    
    
    
    
    this.subform = new XFAObjectArray();
  }
  [$finalize]() {