Cross window communication

1. What is cross window communication?
2. How do you communicate between two iframes?
3. What is same origin and cross-origin?
4. How to send messages between iframe and parent?
5. What is cross-origin communication?
6. What are window crosses called?
7. Can iFrames be hacked?
8. Can you communicate with iframe?
9. What is better than iframe?
10. Why is cross-origin used?
11. How does CORS origin work?
12. Why iframe is not recommended?
13. How do you handle multiple IFrames?
14. How do I switch between multiple IFrames in selenium?
15. How do I switch between IFrames in selenium Python?
16. Why iframe is not recommended?
17. Are iframes used anymore?
18. Are iframes outdated?

What is cross window communication?

The “Same Origin” (same site) policy limits access of windows and frames to each other. The idea is that if a user has two pages open: one from john-smith.com , and another one is gmail.com , then they wouldn't want a script from john-smith.com to read our mail from gmail.com .

How do you communicate between two iframes?

Communicating directly between iframes is also possible by combining window. parent with target as defined above. In conclusion, the postMessage method is a more dynamic alternative to the single DOM, better suited if you load multiple pages in one iframe, but not always easier and it still requires the use of the DOM.

What is same origin and cross-origin?

"same-origin" and "cross-origin" #

Websites that have the combination of the same scheme, hostname, and port are considered "same-origin". Everything else is considered "cross-origin".

How to send messages between iframe and parent?

Sending some data from the child iframe to the parent window is also pretty simple. Whenever you embed an iframe, the iframe will have a reference to the parent window. You just need to use the PostMessage API to send data via the window. parent reference of the parent window.

What is cross-origin communication?

Cross-origin resource sharing (CORS) is a mechanism that allows restricted resources on a web page to be requested from another domain outside the domain from which the first resource was served. A web page may freely embed cross-origin images, stylesheets, scripts, iframes, and videos.

What are window crosses called?

Grille: Also called grid or muntin, these decorative cross pieces divide the window into panes. Some grilles are suspended between the glass; others snap off for easy cleaning.

Can iFrames be hacked?

The main security threat of iFrames is XSS (cross-site scripting) attacks. Attackers can perform XSS attacks in multiple ways. For example, changing the source site URL, installing malware, stealing information, or hijacking clicks and keystrokes through an iFrame.

Can you communicate with iframe?

All you have to do is first dispatch an event from the iframe to the parent that notifies the parent that the iframe is loaded (essentially a "ready message"). The parent will be listening for messages and if it receives the "ready message" event, it can then reply to the iframe with whatever message you want to send.

What is better than iframe?

One alternative to using an iframe with HTML5 is to use the object element. The object element allows you to embed external content on your web page, just like an iframe , but it uses a different approach that can be more flexible and customizable.

Why is cross-origin used?

Cross-Origin Resource Sharing (CORS) is an HTTP-header based mechanism that allows a server to indicate any origins (domain, scheme, or port) other than its own from which a browser should permit loading resources.

How does CORS origin work?

How CORS works. CORS allows the server to explicitly whitelist certain origin and help to bypass the same-origin policy. If your server is configured for CORS, it will return an extra header with “Access-Control-Allow-Origin” on each response.

Why iframe is not recommended?

iframe injection is a very common cross-site scripting attack. iframes use multiple tags to display HTML documents on web pages and redirect users to different web addresses. This behavior allows 3rd parties to inject malicious executables, viruses, or worms into your application and execute them in user's devices.

How do you handle multiple IFrames?

To work with different nested iframes, we can use the method switchTo() to switch the frames using Index, Name, or Id & Web Element. Moreover, you can switch to immediate parent iframe using method switchTo(). parentFrame(). You can switch to the main web page from child iframe using method switchTo().

How do I switch between multiple IFrames in selenium?

Another way to switch between frames in selenium is to pass the WebElement to the switchTo() command. Here the primary step is to find the iframe element and then pass it to the switch method.

How do I switch between IFrames in selenium Python?

Switch Between IFrames Using Selenium Python. If a webpage contains multiple IFrames, then we will need to switch between them. Selenium Python API provides “switch_to. iframe (self, frame_reference)” method to move to a particular IFrame.

Why iframe is not recommended?

iframe injection is a very common cross-site scripting attack. iframes use multiple tags to display HTML documents on web pages and redirect users to different web addresses. This behavior allows 3rd parties to inject malicious executables, viruses, or worms into your application and execute them in user's devices.

Are iframes used anymore?

How did iFrames become popular in the first place? Inline frames (shortened to iFrames) were introduced in the late 1990s by Microsoft, making it one of the oldest HTML tags. From a technology perspective, it's ancient. That said, there are still some legitimate use cases for iFrames.

Are iframes outdated?

Iframes are obsolete for page layout. Never use them instead of good CSS layout, even table-based layout is better.