Attach (recommended) or Link to PDF file here:
PDF is [Sample lease contract 26.pdf](https://github.com/mozilla/pdf.js/files/1500985/Sample.lease.contract.26.pdf)

Steps to reproduce the problem:
I am using [https://mozilla.github.io/pdf.js/web/viewer.html](url) to preview pdf by opening the pdf.

now am searching for "**made is**" but its not showing in the pdfjs

and while selecting and copying pdf  text it has no space in b/w words

}
    
    return (this._charsCache[chars] = glyphs);
  }
  /**
   * Chars can have different sizes (depends on the encoding).
   * @param {String} a string encoded with font encoding.
   * @returns {Array<Array<number>>} the positions of each char in the string.
   */
  getCharPositions(chars) {
    
    
    const positions = [];
    if (this.cMap) {
      const c = Object.create(null);
      let i = 0;
      while (i < chars.length) {
        this.cMap.readCharCode(chars, i, c);
        const length = c.length;
        positions.push([i, i + length]);
        i += length;
      }
    } else {
      for (let i = 0, ii = chars.length; i < ii; ++i) {
        positions.push([i, i + 1]);
      }
    }
    return positions;
  }
  get glyphCacheValues() {