I'. automating regression tests for a website and one of the tasks is to check the various urls that come in to me. I am using Puppeteer and Chromium for this. I get both web pages and pdf, when I get url pdf and try to enter it seems that nothing happens. I am getting a timeout error.

if(url.endsWith(".pdf") || page.url().indexOf("pdf")){
            context.log("is PDF");
              throw 422;
          }
         await page.goto(url).catch(e => {
            context.log('Navigation failed: ' + e.message)});

Yhis isn't enough, isn't there another way to handle the error without checking the url but acting on it? How do i handle this error? I would like to generate an error whenever I receive a pdf url (the link does not necessarily end with .pdf)