It can&#39;t be done.  For various reasons (including, but not limited to data usage), Apple doesn&#39;t allow auto-playing of videos.

See [the accepted answer to this question][1].


  [1]: https://stackoverflow.com/questions/3009888/autoplay-audio-files-on-an-ipad-with-html5

**UPDATE :** 

iOS 10+ now allows auto-play on HTML5 &lt; video&gt; elements, just have to mute the audio on &lt;video&gt; elements. Youtube will still not. Android is still SOL too, but hey, its a start!


**SAMPLE:**

    &lt;video autoplay muted&gt;
      &lt;source src=&quot;movie.mp4&quot; type=&quot;video/mp4&quot;&gt;
      Sadly, your browser does not support the video tag X_x 
    &lt;/video&gt;


**INFO SOURCE:** https://webkit.org/blog/6784/new-video-policies-for-ios/

I have tried with following and Youtube video successfully autoplays in fullscreen when web view finish loading:

    [self.webView setAllowsInlineMediaPlayback:YES];
    [self.webView setMediaPlaybackRequiresUserAction:NO];
    
    [self.view addSubview:self.webView];
    
    NSString* embedHTML = [NSString stringWithFormat:@&quot;\
                           &lt;html&gt;\
                           &lt;body style=&#39;margin:0px;padding:0px;&#39;&gt;\
                           &lt;script type=&#39;text/javascript&#39; src=&#39;http://www.youtube.com/iframe_api&#39;&gt;&lt;/script&gt;\
                           &lt;script type=&#39;text/javascript&#39;&gt;\
                           function onYouTubeIframeAPIReady()\
                           {\
                           ytplayer=new YT.Player(&#39;playerId&#39;,{events:{onReady:onPlayerReady}})\
                           }\
                           function onPlayerReady(a)\
                           { \
                           a.target.playVideo(); \
                           }\
                           &lt;/script&gt;\
                           &lt;iframe id=&#39;playerId&#39; type=&#39;text/html&#39; width=&#39;100%%&#39; height=&#39;%f&#39; src=&#39;http://www.youtube.com/embed/%@?enablejsapi=1&amp;rel=0&amp;playsinline=0&amp;autoplay=1&#39; frameborder=&#39;0&#39;allowfullscreen&gt;\
                           &lt;/body&gt;\
                           &lt;/html&gt;&quot;,self.webView.frame.size.height,@&quot;Dw9jFO_coww&quot;];
    
    
    [self.webView bringSubviewToFront:self.btnBack];
    self.webView.backgroundColor = [UIColor clearColor];
    self.webView.opaque = NO;
    [self.webView loadHTMLString:embedHTML baseURL:[[NSBundle mainBundle] resourceURL]];


 

    &lt;div id=&quot;id1&quot;&gt;
     &lt;p&gt;
       apple
     &lt;/p&gt;
     &lt;p&gt;
       ball
     &lt;/p&gt;
     &lt;p&gt;
       cat
     &lt;/p&gt;
     &lt;p&gt;
       dogsss
     &lt;/p&gt;
    &lt;/div&gt;

How Do I change `dogsss` to `dollsss` using `jquery`?

Jquery: Find Text and replace

I am trying to achieve the functionality similar to unlist, with the exception that types are not coerced to a vector, but the list with preserved types is returned instead. For instance:

    flatten(list(NA, list(&quot;TRUE&quot;, list(FALSE), 0L))

should return

    list(NA, &quot;TRUE&quot;, FALSE, 0L)
instead of

    c(NA, &quot;TRUE&quot;, &quot;FALSE&quot;, &quot;0&quot;)
which would be returned by `unlist(list(list(NA, list(&quot;TRUE&quot;, list(FALSE), 0L))`.

As it is seen from the example above, the flattening should be recursive. Is there a function in standard R library which achieves this, or at least some other function which can be used to easily and efficiently implement this?

**UPDATE**: I don&#39;t know if it is clear from the above, but non-lists should not be flattened, i.e. `flatten(list(1:3, list(4, 5)))` should return `list(c(1, 2, 3), 4, 5)`.

How to flatten a list to a list without coercion?

I have a youtube embeded video link in HTML5 page, which I want to [**autoplay**][1].

The following code works in browsers, but in iphone; its not working and needs an extra click.

    &lt;iframe type=&quot;text/html&quot; width=&quot;125&quot; height=&quot;100&quot; src=&quot;http://www.youtube.com/embed/d_g0251EfB8?autoplay=1&quot; frameborder=&quot;0&quot;&gt;&lt;/iframe&gt;

what to do


  [1]: http://code.google.com/apis/youtube/player_parameters.html#autoplay

Youtube embedded video: autoplay feature not working in iphone

I have a youtube embeded video link in HTML5 page, which I want to <a href="http://code.google.com/apis/youtube/player_parameters.html#autoplay" target="_blank" rel="noopener noreferrer">autoplay</a>.
The following code works in browsers, but in iphone; its not working and needs an extra click.
<pre><code class="hljs language-arduino">&#x3C;iframe type="text/html" width="125" height="100" src="http://www.youtube.com/embed/d_g0251EfB8?autoplay=1" frameborder="0">&#x3C;/iframe>
</code></pre>
what to do

I am looking for a way to programmatically empty the browser cache. I am doing this because the application caches confidential data and I&#39;d like to remove those when you press &quot;log out&quot;. This would happen either via server or JavaScript. Of course, using the software on foreign/public computer is still discouraged as there are more dangers like key loggers that you just can&#39;t defeat on software level.

How to programmatically empty browser cache?

I want to make it so that a whole div is clickable and links to another page when clicked without JavaScript and with valid code/markup.

If I have this which is what I want the result to do - 

    &lt;a href=&quot;#&quot;&gt;
    &lt;div&gt;This is a link&lt;/div&gt;
    &lt;/a&gt;
 
The W3C validator says that block elements shouldn&#39;t be placed inside an inline element. Is there a better way to do this?





How to make a whole &#39;div&#39; clickable in html and css without JavaScript?

Vim has support for matching pairs of curly brackets, parentheses, and square brackets. This is great for editing C-style languages like PHP and JavaScript. But what about matching HTML tags?

Notepad++ has had this feature for as long as I’ve been using it. Being able to spot where blocks of HTML begin and end is very useful. What I’m looking for is something like this for Vim (see the green div tags):

![Example of matching HTML tags highlighting][1]

A bonus feature: highlighting unclosed HTML tags, like the red tag in the above screenshot.

[matchit](https://www.vim.org/scripts/script.php?script_id=39) has been proposed as the next-best-thing, but it requires an extra keystroke to use its functionality. I’d like be able to see where the blocks of HTML begin and end without an extra keypress.

I’ve trawled the internet to find something like this for Vim. Apparently, I’m not the only one, according to [two][q1] [other][q2] StackOverflow questions and a Nabble [thread][q3].

I’ve almost resigned myself to Vim not being able to visually match HTML tags. Is it possible for Vim to do this?

Addendum: If it is not currently possible to do this with any existing plugins, does any Vimscript wizard out there have any pointers on how to approach writing a suitable plugin?

[1]: http://i.stack.imgur.com/swLB4.png
[q1]: https://stackoverflow.com/questions/2154193/using-vim-as-a-html-editor
[q2]: https://stackoverflow.com/questions/1957083/vim-script-to-hightlight-end-of-a-tag-like-braces/1960175
[q3]: http://vim.1045645.n5.nabble.com/How-can-Vim-highlight-the-matching-tag-when-I-put-the-cursor-on-the-other-one-in-a-pair-of-tags-td1177554.html

Can Vim highlight matching HTML tags like Notepad++?

How can I submit a POST form to `showMessage.jsp` using just the `&lt;a href=&quot;...&quot;&gt;` tag?

    &lt;form action=&quot;showMessage.jsp&quot; method=&quot;post&quot;&gt;
        &lt;a href=&quot;showMessage.jsp&quot;&gt;&lt;%=n%&gt;&lt;/a&gt;
        &lt;input type=&quot;hidden&quot; name=&quot;mess&quot; value=&lt;%=n%&gt;/&gt;
    &lt;/form&gt;

How can I submit a POST form using the &lt;a href=&quot;...&quot;&gt; tag?

What&#39;s the real difference between those two? I mean real, essential difference.
What&#39;s the future holding for regular `createElement`?

Svg is xml, not html. I get that. So we use `createElementNS(ns_string, &#39;svg&#39;)`
And then `setAttributeNS(null,,)`. Why?
Why not `setAttributeNS(&#39;my_ns&#39;,,)`?

Why must `ns_string` be `http://www.w3.org/2000/svg` and not some random string? What&#39;s the purpose of a namespace if there is only one namespace?

What&#39;s the purpose of `ns` in regular html? Should I change all instances of `createElement` to `createElementNS` in my existing code?

I am reading the [DOM-Level-2][1] spec. but I&#39;m still puzzled.


  [1]: http://www.w3.org/TR/DOM-Level-2-Core/core.html

createElement vs. createElementNS

I didn&#39;t received any notifications for `MPMoviePlayerController`. What am I doing wrong?

I use following logic.

I&#39;m begining to play youtube video in `UIWebView`. `UIWebView` calls a standard `MPMoviePlayerController`. I don&#39;t control `MPMoviePlayerController` because I didn&#39;t instantiate `MPMoviePlayerController`.  

I run youtube&#39;s clip with autoplay (1 second delay):

    [self performSelector:@selector(touchInView:) withObject:b afterDelay:1];

My code is:

    - (void)viewDidLoad
    {
        [super viewDidLoad];
        
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(loadStateDidChange:) name:MPMoviePlayerLoadStateDidChangeNotification object:nil];
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(playbackDidFinish:) name:MPMoviePlayerDidExitFullscreenNotification object:nil];
        
        [self embedYouTube];
    }

    - (void)loadStateDidChange:(NSNotification*)notification
    {
        NSLog(@&quot;________loadStateDidChange&quot;);
    }

    - (void)playbackDidFinish:(NSNotification*)notification
    {
        NSLog(@&quot;________DidExitFullscreenNotification&quot;);
    }

    - (void)embedYouTube
    {
        CGRect frame = CGRectMake(25, 89, 161, 121);
        NSString *urlString = [NSString stringWithString:@&quot;http://www.youtube.com/watch?v=sh29Pm1Rrc0&quot;];
        
        NSString *embedHTML = @&quot;&lt;html&gt;&lt;head&gt;\
        &lt;body style=\&quot;margin:0\&quot;&gt;\
        &lt;embed id=\&quot;yt\&quot; src=\&quot;%@\&quot; type=\&quot;application/x-shockwave-flash\&quot; \
        width=\&quot;%0.0f\&quot; height=\&quot;%0.0f\&quot;&gt;&lt;/embed&gt;\
        &lt;/body&gt;&lt;/html&gt;&quot;;
        NSString *html = [NSString stringWithFormat:embedHTML, urlString, frame.size.width, frame.size.height];
        UIWebView *videoView = [[UIWebView alloc] initWithFrame:frame];
        videoView.delegate = self;
        
        for (id subview in videoView.subviews)
            if ([[subview class] isSubclassOfClass: [UIScrollView class]])
                ((UIScrollView *)subview).bounces = NO;
                
                [videoView loadHTMLString:html baseURL:nil];
        [self.view addSubview:videoView];
        [videoView release];
    }

    - (void)webViewDidFinishLoad:(UIWebView *)_webView 
    {
        UIButton *b = [self findButtonInView:_webView];
        [NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(touchInView:) object:b];
        [self performSelector:@selector(touchInView:) withObject:b afterDelay:1];
    }

    - (UIButton *)findButtonInView:(UIView *)view 
    {
        UIButton *button = nil;
        
        if ([view isMemberOfClass:[UIButton class]]) {
            return (UIButton *)view;
        }
        
        if (view.subviews &amp;&amp; [view.subviews count] &gt; 0) 
        {
            for (UIView *subview in view.subviews) 
            {
                button = [self findButtonInView:subview];
                if (button) return button;
            }
        }
        return button;
    }

    - (void)touchInView:(UIButton*)b
    {
        [b sendActionsForControlEvents:UIControlEventTouchUpInside];
    }

**UPDATE:** I&#39;m creating application that plays youtube&#39;s video. You can run playlist and you will see first video. When first video has ended, second video begins play automatically and so on. 

I need to support ios 4.1 and above.


**UPDATE2:** @H2CO3 I&#39;m trying to use your url-scheme, but it don&#39;t works. Delegate method didn&#39;t called on exit event.  I added my html url to log.
It is:

    &lt;html&gt;&lt;head&gt;	&lt;body style=&quot;margin:0&quot;&gt;    
    &lt;script&gt;function endMovie() 
    {document.location.href=&quot;somefakeurlscheme://video-ended&quot;;} 
     &lt;/script&gt;    	&lt;embed id=&quot;yt&quot; src=&quot;http://www.youtube.com/watch?v=sh29Pm1Rrc0&quot;        
     onended=&quot;endMovie()&quot; type=&quot;application/x-shockwave-flash&quot; 	
     width=&quot;161&quot; height=&quot;121&quot;&gt;&lt;/embed&gt;	
     &lt;/body&gt;&lt;/html&gt;

    - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
    {
      if ([[[request URL] absoluteString] hasPrefix:@&quot;somefakeurlscheme://video-ended&quot;]) 
      {
        [self someMethodSupposedToDetectVideoEndedEvent];
        return NO; // prevent really loading the URL
       }
      return YES; // else load the URL as desired
    }

**UPDATE3**
@Till, I cann&#39;t caught UIMoviePlayerControllerDidExitFullscreenNotification, but I found MPAVControllerItemPlaybackDidEndNotification. MPAVControllerItemPlaybackDidEndNotification appears when playback video is ended. 

But I don&#39;t understand how do I catch onDone notifications? 

 




        

How to receive NSNotifications from UIWebView embedded YouTube video playback

I&#39;m trying to implement a horizontal multilevel dropdown navigation menu. Immediately below (vertically) the menu, I&#39;ve got a YouTube video embedded via iframe. If I hover over one of the main level nav items in Firefox, the dropdown menu properly appears *on top of* the video.  

In  Chrome and IE9, however, only a sliver of the dropdown is visible in the small region of space I have between the menu and the iframe.  The rest of it seems to be *behind* the iframe.  

The problem seems to be related to the YouTube video, *not* the iframe. To test, I aimed the iframe at another web site rather than the video, and the dropdown menu worked fine, even in IE.

 - Question 1: WTF?
 - Question 2: Why, even if I explicity put a `z-index:-999 !important;`
   on the iframe does this problem still occur?

Is there some internal CSS that the YouTube embed code includes that is somehow overriding things?




YouTube Video Embedded via iframe Ignoring z-index?

Can anyone suggest how I embed a youtube channel into a webpage - I am getting conflicting information from various sites, ideally using the custom player if possible? thanks

How to embed a YouTube channel into a webpage

Is it possible to extract the closed caption transcript from YouTube videos?

We have over 200 webcasts on YouTube and each is at least one hour long. YouTube has closed caption for all videos but it seems users have no way to get it.

I tried the URL in this blog but it does not work with our videos.

http://googlesystem.blogspot.com/2010/10/download-youtube-captions.html

YouTube: How to extract closed caption transcript from YouTube video?

I am fairly new to markup (though it&#39;s extremely easy to pickup). I am working on a package and am trying to get the wiki pages looking nice as a help manual. I can insert a YouTube video link into the wiki page pretty easily but how do I embed a YouTube video. I know this may not be possible.

I have read you can use HTML tags so I tried embedding with HTML per this [link][1] as follows:

```html
&lt;object width=&quot;425&quot; height=&quot;350&quot;&gt;
  &lt;param name=&quot;movie&quot; value=&quot;http://www.youtube.com/user/wwwLoveWatercom?v=BTRN1YETpyg&quot; /&gt;
  &lt;param name=&quot;wmode&quot; value=&quot;transparent&quot; /&gt;
  &lt;embed src=&quot;http://www.youtube.com/user/wwwLoveWatercom?v=BTRN1YETpyg&quot;
         type=&quot;application/x-shockwave-flash&quot;
         wmode=&quot;transparent&quot; width=&quot;425&quot; height=&quot;350&quot; /&gt;
&lt;/object&gt;
```

And saved the page but nothing happened.

1.  Is it possible to embed a YouTube video on GitHub wiki pages?
2.  If so how?


  [1]: http://htmlpurifier.org/docs/enduser-youtube.html

How can I embed a YouTube video on GitHub wiki pages?

I have some kind of a strange problem. I try to create a website with a looped background video. The code looks like this one:

&lt;!-- begin snippet: js hide: false console: true babel: false --&gt;

&lt;!-- language: lang-html --&gt;

    &lt;video src=&quot;video/bg.mp4&quot; style=&quot;z-index: -1;object-fit: cover;&quot; poster=&quot;video/bg.jpg&quot; autobuffer autoplay loop muted&gt;&lt;/video&gt;

&lt;!-- end snippet --&gt;

This works perfectly fine on most browsers (IE struggles with this object-fit thing but I don&#39;t mind) but on iPhone the video won&#39;t autoplay but on iPad it does. I already read the [New &lt;video&gt; Policies for iOS][1] and I think I meet the requirements (otherwise iPad won&#39;t autoplay). I did some other testing:

 - Removing overlaying divs won&#39;t fix it 
 - Removing z-index won&#39;t fix it
 - Wifi or Cellular doesn&#39;t make a difference 
 - Video filesize doesn&#39;t make a difference, too

Am I doing it wrong or does iPhone simply won&#39;t autoplay videos and always requires interaction? I only care for iOS 10, I know that the requirements were different on iOS 9

  [1]: https://webkit.org/blog/6784/new-video-policies-for-ios/ &quot;New &amp;lt;video&amp;gt; Policies for iOS&quot;

Content Type	Original Author	Original Content on Stackoverflow
Question	Avisek Chakraborty	View Question on Stackoverflow
Solution 1 - Html	Mike	View Answer on Stackoverflow
Solution 2 - Html	Lux.Capacitor	View Answer on Stackoverflow
Solution 3 - Html	Apurv Soni	View Answer on Stackoverflow

Youtube embedded video: autoplay feature not working in iphone

Html Problem Overview

Html Solutions

Solution 1 - Html

Solution 2 - Html

Solution 3 - Html

How to flatten a list to a list without coercion?

Jquery: Find Text and replace

Attributions