Attach (recommended) or Link to PDF file here:
PDF from #4106, https://mail.gnome.org/archives/evince-list/2013-November/pdfNC0hkVW67a.pdf.

Steps to reproduce the problem:
1. Open the PDF

What is the expected behavior?
![immagine](https://user-images.githubusercontent.com/1616846/121865567-67ca4200-ccfe-11eb-8673-1d6e863fc8d5.png)

What went wrong?
The PDF doesn't load, `TypeError: can't access property Symbol(), match is null` error is logged in the console.
const color = style.color;
    if (color) {
      if (color === "#000000") {
        
        delete style.color;
      } else if (!color.startsWith("#")) {
        
        
        style.background = color;
        style.backgroundClip = "text";
        style.color = "transparent";
      }
    }
    if (this.baselineShift) {
      style.verticalAlign = measureToString(this.baselineShift);
    }
    
    
    if (this.kerningMode !== "none") {
      style.fontKerning = "normal";
    }
    if (this.letterSpacing) {
      style.letterSpacing = measureToString(this.letterSpacing);
    }
    if (this.lineThrough !== 0) {
      style.textDecoration = "line-through";
      if (this.lineThrough === 2) {
        style.textDecorationStyle = "double";
      }
    }