use chrome --print-to-pdf --headless to print html too quickly?
I solved this problem by using a sweet nodeJS package called html-pdf-chrome that solves this problem by instructing Chrome to wait for either a timeout, a callback function to be called or a selector on the page to exist.
My code:
const PRINT_OPTIONS = { clearCache: true, printOptions: { scale: 0.6 }, completionTrigger: new HtmlPdf.CompletionTrigger.Timer(5000) // Give it 5000ms to render the HTML};async function outputHTMLToPDF(sourceHTML, outputFilename) { console.log("Printing the html using Chrome..."); let pdf = await HtmlPdf.create(sourceHTML, PRINT_OPTIONS); console.log("Saving the PDF to " + outputFilename + "..."); await pdf.toFile(path.join(DEFAULT_PRINT_PATH, outputFilename));});