I tried straight forward approaches to solve this problem and they didn’t work. Even obscure apis like CSS expressions and counters don’t work to solve this. Fortunately there seems to be a simple enough work around. We print each page separately using the pageRange parameter and then combine all the pages to generate the required … Read more
What “Target closed” means When you launch a browser via puppeteer.launch it will start a browser and connect to it. From there on any function you execute on your opened browser (like page.goto) will be send via the Chrome DevTools Protocol to the browser. A target means a tab in this context. The Target closed … Read more
This works for me: start chrome –enable-logging –headless –disable-gpu –print-to-pdf=c:\misc\output.pdf https://www.google.com/ … but only with “start chrome” and “–enable-logging” and with a path (for the pdf) specified – and if the folder “misc” exists on the c-directory. Addition: … the path for the pdf – “c:\misc” above – can of course be replaced with any … Read more
If you are attempting to fill out and submit a login form, you can use the following: await page.goto(‘https://www.example.com/login’); await page.type(‘#username’, ‘username’); await page.type(‘#password’, ‘password’); await page.click(‘#submit’); await page.waitForNavigation(); console.log(‘New Page URL:’, page.url());
You can run Chrome with extensions headless using Xvfb. Install Xvfb. On Fedora sudo dnf install xorg-x11-server-Xvfb xvfb-run google-chrome –remote-debugging-port=9222 –disable-gpu https://www.google.com Use chrome-remote-interface (or another Chrome Debug Protocol client) to trigger the screenshot. More complicated, but it does work. It’s what we use for headless chrome extension testing.
Yes, it’s a “feature”, for security. As mentioned before here is the bug discussion: https://bugs.chromium.org/p/chromium/issues/detail?id=696481 Support was added in chrome version 62.0.3196.0 or above to enable downloading. Here is a python implementation. I had to add the command to the chromedriver commands. I will try to submit a PR so it is included in the … Read more
You can use page.waitForNavigation() to wait for the new page to load completely before generating a PDF: await page.goto(fullUrl, { waitUntil: ‘networkidle0’, }); await page.type(‘#username’, ‘scott’); await page.type(‘#password’, ‘tiger’); await page.click(‘#Login_Button’); await page.waitForNavigation({ waitUntil: ‘networkidle0’, }); await page.pdf({ path: outputFileName, displayHeaderFooter: true, headerTemplate: ”, footerTemplate: ”, printBackground: true, format: ‘A4’, }); If there is a … Read more
To run chrome-headless just add –headless via chrome_options.add_argument, i.e.: from selenium import webdriver from selenium.webdriver.chrome.options import Options chrome_options = Options() #chrome_options.add_argument(“–disable-extensions”) #chrome_options.add_argument(“–disable-gpu”) #chrome_options.add_argument(“–no-sandbox”) # linux only chrome_options.add_argument(“–headless”) # chrome_options.headless = True # also works driver = webdriver.Chrome(options=chrome_options) start_url = “https://duckgo.com” driver.get(start_url) print(driver.page_source.encode(“utf-8”)) # b'<!DOCTYPE html><html xmlns=”http://www…. driver.quit() So my thought is that running it with … Read more
It should look like this: from selenium import webdriver from selenium.webdriver.chrome.options import Options options = Options() options.add_argument(‘–headless’) options.add_argument(‘–disable-gpu’) # Last I checked this was necessary. driver = webdriver.Chrome(CHROMEDRIVER_PATH, chrome_options=options) This works for me using Python 3.6, I’m sure it’ll work for 2.7 too. Update 2018-10-26: These days you can just do this: from selenium import … Read more