Proxy for Threema

Open the "Browser Properties" in the control panel, in the "Connections" section of the opened window select "Network Settings". Remove the check mark from the "Use proxy" item, click "OK".

It means a private proxy server used by several users. For example, one of them has bought a paid proxy and lets his friend use it for a fee. That is, he "shared" his proxy (shared means "common").

The error "Unable to locate element" in Selenium usually occurs when the web element you are trying to interact with is not present in the DOM (Document Object Model) at the time your script tries to locate it. This could be due to several reasons, such as

The element is not present on the page when the script tries to locate it.

The element is present but not visible (e.g., hidden by CSS or not yet rendered).

The element has a different ID, name, or other attributes than expected.

The element is dynamically loaded after the initial page load (e.g., via JavaScript).

To resolve this issue, you can try the following:

Wait for the element to be present: Use explicit or implicit waits to wait for the element to be present and visible before interacting with it. Explicit wait example:

from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC

# Explicit wait example
wait = WebDriverWait(driver, 10)
element = wait.until(EC.presence_of_element_located((By.ID, "element_id")))

Implicit wait example:

driver.implicitly_wait(10)  # Set an implicit wait of 10 seconds
element = driver.find_element(By.ID, "element_id")

Wait for the element to be clickable: If you want to click the element, you can wait for it to be clickable instead of just present. Clickable wait example:

from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support.expected_conditions import element_to_be_clickable

wait = WebDriverWait(driver, 10)
element = wait.until(element_to_be_clickable((By.ID, "element_id")))

Check the element's locator: Ensure that the locator (e.g., ID, name, XPath, CSS selector) you are using is correct and unique to the element you want to interact with. If multiple elements have the same locator, you may inadvertently interact with the wrong one.

Handle dynamic elements: If the element is dynamically loaded after the initial page load, you may need to use JavaScript to interact with it directly or to scroll to the element before interacting with it.

JavaScript example:

script = "arguments[0].click();"
button = driver.find_element(By.ID, "button_id")
driver.execute_script(script, button)

Refresh the page: If the element is still not present or not visible, you may need to refresh the page or navigate to a different page where the element is present.

Remember to replace "element_id", "button_id", and other placeholders with the actual element identifiers in your code.

The tool that exists to run Selenium tests in headless mode is called "Headless Browsers". Headless browsers are browser automation tools that run without a graphical user interface (GUI). They are typically used for testing web applications without the need for a visible browser window. Some popular headless browsers include:

1. Chrome's Headless mode: Chrome's headless mode can be enabled by passing the --headless flag when launching a ChromeDriver instance.

2. Firefox's Headless mode: Firefox's headless mode can be enabled by passing the --headless flag when launching a GeckoDriver instance.

3. PhantomJS: PhantomJS is a headless browser that can be used with Selenium to run tests without a visible browser window.

4. Puppeteer: Puppeteer is a Node library that provides a high-level API to control Chrome or Chromium over the DevTools Protocol. It can be used to run tests in headless mode.

5. HtmlUnit: HtmlUnit is a headless browser that can be used with Selenium to run tests without a visible browser window.

It's important to note that the specific implementation of running Selenium tests in headless mode may vary depending on the browser and the version of the Selenium WebDriver being used.

The purpose of User Datagram Protocol (UDP) is to provide a simple and lightweight transport layer protocol for applications that do not require the reliability and overhead of the Transmission Control Protocol (TCP). UDP does not guarantee delivery, meaning it does not provide mechanisms for retransmission or acknowledgment of received packets. However, it offers fast and efficient communication, which is ideal for real-time applications such as video streaming, online gaming, and voice over IP (VoIP). These applications can tolerate some packet loss or delay and prioritize speed over reliability.