As it is still not clear for me how to download files using --headless mode in ChromeDriver - selenium [Java], add here please the example of how to do so, I try to do it li
In Java use like this :
System.setProperty("webdriver.chrome.driver", "/usr/local/bin/chromedriver");
ChromeOptions options = new ChromeOptions();
options.addArguments("--test-type");
options.addArguments("--headless");
options.addArguments("--disable-extensions"); //to disable browser extension popup
ChromeDriverService driverService = ChromeDriverService.createDefaultService();
ChromeDriver driver = new ChromeDriver(driverService, options);
Map<String, Object> commandParams = new HashMap<>();
commandParams.put("cmd", "Page.setDownloadBehavior");
Map<String, String> params = new HashMap<>();
params.put("behavior", "allow");
params.put("downloadPath", "//home//vaibhav//Desktop");
commandParams.put("params", params);
ObjectMapper objectMapper = new ObjectMapper();
HttpClient httpClient = HttpClientBuilder.create().build();
String command = objectMapper.writeValueAsString(commandParams);
String u = driverService.getUrl().toString() + "/session/" + driver.getSessionId() + "/chromium/send_command";
HttpPost request = new HttpPost(u);
request.addHeader("content-type", "application/json");
request.setEntity(new StringEntity(command));
httpClient.execute(request);
driver.get("http://www.seleniumhq.org/download/");
driver.findElement(By.linkText("32 bit Windows IE")).click();
As per official release page of chrome driver, a fix has been introduced for this issue. Any chrome driver version greater than 77 will be able to download the file in headless mode.
options.addArguments("--headless");