vue中pdf预览，报错（Cannot read properties of undefined (reading ‘catch‘)）解决

1、在node_modules中找到vue-pdf，src下的pdfjsWrapper.js

if ( pdfRender !== null ) {
   if ( canceling )
       return;
   canceling = true;
   pdfRender.cancel().catch(function(err) {
       emitEvent('error', err);
   });
   return;
}

　　修改为

if ( pdfRender !== null ) {
   if ( canceling )
      return;
   canceling = true;
   pdfRender.cancel();
   return;
}