How to make an application in VKontakte. Application Creation Sequence

The most popular Russian social network, VKontakte, recently hosted an event that JavaScript programmers have been waiting for for a long time. Now you can create your own iFrame applications to interact with the software API of this network. To do this, you can now use both Flash and JavaScript scripts and any other client-side technology.

This event is all the more significant because, despite the abundance of existing client technologies, JavaScript was and remains a good old technology that is widely used by Web developers, and if you paid attention to this note, then you probably have some understanding of this language. Therefore, the news that JavaScript will now allow you to use all the features of VKontakte cannot but please Web developers.

What are iFrame apps? On the VKontakte network iFrame application is an ordinary Web page that is intended to be displayed in a "floating frame" specified by the tag . Tell me what can be done? There is access to files on the hard drive, but how to find what exactly is responsible for this?

Added after 8 minutes
Maybe you can use some kind of Dump Flash Decomplier? But what to decompile?

Answer: Maybe this will help?

Question: Server response code and iframe update

Hello
I would like to implement the following: on the page, through the iframe, the site is displayed, if the site in the iframe does not load (the server response code of this site is not 200), then the iframe should automatically reload. And the auto reload goes on until the site response code in the iframe becomes 200.
Is it possible to implement this?
Found the page auto-refresh code

Subtracted that the response code can be obtained through XMLHttpRequest. But it is impossible to combine everything together, there is not enough knowledge

Answer: Thank you very much, I screwed up. Everything works

Question: iFrame and Yandex.disk

Good evening. Why can't I load a site into a frame? If you specify another site, then everything is fine.

Answer: header("X-Frame-Options: SAMEORIGIN");
this is how it is done in php

This header tells the browser not to open me in the iframe of someone else's site (only my own). You can enable the ban completely.

Question: Display iframe http on htpps

Hello!

Tell me please, who knows how to display the page of the site on http through the iframe to the site working on https.

Answer:
no way, in modern browsers the policy completely prohibits mixed content. If the site works on https, all connected content must work on a secure protocol.

Question: How to find Iframe

Hello, help me find an Iframe on the site

Answer: EkaterinaM, when checking the site, they tell me that this is not a video)
This hidden code, possibly malicious) Google said that everything is fine (checked suspicious links in settings.php, index.php, etc.)
But this code significantly affects the optimization

Question: problem after update Flash Player

Good afternoon! After Adobe updates Flash Player video on the site stopped playing. The video (swf) starts playing, immediately stops and until you click on Play or "run the plug-in" in context menu stops showing.

The swf movie is on another host.

Please tell me how to fix this.
Screenshot in attachment.

Answer:

Question: Browser inside the site (similar to iframe)

Greetings)
I'm trying to make a browser inside the site

Iframe - ideal for this, but it does not display all sites (for example, it does not display social networks), but I would like everything, so I'm looking for other ways

For example this

Using ajax, we send a request to our server with the address
in response, we get the code of that site and paste it into a div
but along with the code of that site, we get both its styles and its errors
can i fix this somehow?
Or is there any other way to solve this problem?

Answer: how would source receive?