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.
constructor(attributes) {
    super(CONFIG_NS_ID, "equateRange");
    this.from = attributes.from || "";
    this.to = attributes.to || "";
    this._unicodeRange = attributes.unicodeRange || "";
  }
  get unicodeRange() {
    const ranges = [];
    const unicodeRegex = /U\+([0-9a-fA-F]+)/;
    const unicodeRange = this._unicodeRange;
    for (let range of unicodeRange
      .split(",")
      .map(x => x.trim())
      .filter(x => !!x)) {
      range = range.split("-", 2).map(x => {
        const found = x.match(unicodeRegex);
        if (!found) {
          return 0;
        }
        return parseInt(found[1], 16);
      });
      if (range.length === 1) {
        range.push(range[0]);
      }
      ranges.push(range);
    }
    return shadow(this, "unicodeRange", ranges);
  }
}
class Exclude extends ContentObject {