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

const charsLength = chars.length;
  
  if (charsLength <= 1 || !isRTLRangeFor(chars.charCodeAt(0))) {
    return chars;
  }
  const buf = [];
  for (let ii = charsLength - 1; ii >= 0; ii--) {
    buf.push(chars[ii]);
  }
  return buf.join("");
}
const SpecialCharRegExp = new RegExp("^(\\s)|(\\p{Mn})$", "u");
function getCharUnicodeCategory(char) {
  const groups = char.match(SpecialCharRegExp);
  return {
    isWhitespace: !!(groups && groups[1]),
    isDiacritic: !!(groups && groups[2]),
  };
}
export {
  getCharUnicodeCategory,
  getNormalizedUnicodes,
  getUnicodeForGlyph,
  getUnicodeRangeFor,
  mapSpecialUnicodeValues,
  reverseIfRtl,
};