解决vue-pdf的签章不显示问题记录

    getNumPages(url) {
      var loadingTask = pdf.createLoadingTask({
         url: url,
         //引入pdf.js字体
         cMapUrl: 'https://cdn.jsdelivr.net/npm/pdfjs-dist@4.8.69/cmaps/',
         cMapPacked: true
      });
      this.url = loadingTask;
      loadingTask.promise.then((res) => {
        this.numPages = res.numPages;
      })
    }

if (data.fieldType === 'Sig') {
  data.fieldValue = null;
 // _this3.setFlags(_util.AnnotationFlag.HIDDEN);
}

npm install patch-package
npx patch-package pdfjs-dist

"scripts": {
    ...
    "postinstall": "patch-package"
 },

const filename = _loaderUtils2.default.interpolateName(this, options.name || '[hash].worker.js', {
    context: options.context || this.rootContext || this.options.context,
    regExp: options.regExp
});

const filename = _loaderUtils2.default.interpolateName(this, options.name || 'static/js/[hash].worker.js', {
  context: options.context || this.rootContext || this.options.context,
  regExp: options.regExp
});