When I am trying to load this pdf http://merlin_test.s3.amazonaws.com/myPdf.pdf, it's unable to render all the contents. There is a blue background which is not visible and some of the texts are not visible as well as the color is not proper. Can someone please help

const current = this.current;
    const font = current.font;
    if (font.isType3Font) {
      return this.showType3Text(glyphs);
    }
    const fontSize = current.fontSize;
    if (fontSize === 0) {
      return undefined;
    }
    const ctx = this.ctx;
    const fontSizeScale = current.fontSizeScale;