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Unable to post message to http://www.youtube.com. Recipient has origin https://www.youtube.com

My app at http://beta.billboard.fm is producing errors in my normal browsing session after playing a single song.
If i reload the page in incognito, the app works fully. I only recently starting experiencing these issues. I have completed cleared all of the cache and it works again, but only temporarily before throwing the same errors.
Additionally I have disable all browser extensions.
But, no matter what I do I can't get this error from being thrown by the Youtube API:
Unable to post message to http://www.youtube.com. Recipient has origin https://www.youtube.com
It looks like there is a mismatch in the security protocols. I tried changing them to https or just removing "http:" all together on my side. But it did not resolve the issue.
Any one have an idea what is happening here?

It is quite clear to me at this point that this is a major bug in Google/YouTube's API. They have written some bad code somewhere. This bug is not a consistent thing. This is well documented by the fact that everybody's code works just fine for an extended period of time, and then they discover that all of a sudden their sites stop working properly. Additionally, all of my websites that had this problem last week are now working without a glitch - again, without me altering code.
So while it sucks to say this - the onus is on Google & YouTube to fix this and provide APIs that actually work as advertised... It doesn't look to me like there's anything we can do about it on our own :(

I am having the same problem - I also tried changing my links to http: to https: and vice-versa with no luck. I found this tread on Google Groups, but so far there has been no response. https://code.google.com/p/gdata-issues/issues/detail?id=4697
Clearing my cache allowed the player to work for a few videos, but after 3 or 4, the same error pops back up.

UPDATE 2 - Dec. 24, 2013: This solution has not actually fixed the problem at all:
After following a thread that poulified referred me to in his answer, a user in the forum posted the following solution which seems to be doing the trick for me (UPDATE: Still experiencing issues on random page loads :/):
Hi all,
It is working for replacing http:// with https://
example: http://jsfiddle.net/8tkgW/29/
Please make sure the following tips
load iframe api https://www.youtube.com/player_api
load iframe src path: https://www.youtube.com/embed/0GN2kpBoFs4?rel=0
If load player via new YT.Player, you must check the iframe src path:
setTimeout(function(){
var url = $('#iframe_youtube').prop('src');
if (url.match('^http://') {
$('#iframe_youtube').prop('src', url.replace(/^http:\/\//i, 'https://'));
}
}, 500);
Please refer my github project:
https://github.com/appleboy/js-video-player/blob/master/js/jsplayer.js#L120

Replace url from youtube to embed code - Error: Permission denied to access property 'toString'

I have this code and this error in FireBug:
Error: Permission denied to access property 'toString'
How can i fix this error?
HTML:
<div class="yturl">http://www.youtube.com/watch?v=UNMLEZrukRU</div>
JS:
$("div.yturl").each(function(){
var regex = /(\?v=|\&v=|\/\d\/|\/embed\/|\/v\/|\.be\/)([a-zA-Z0-9\-\_]+)/;
var youtubeurl = $(this).text();
var regexyoutubeurl = youtubeurl.match(regex);
if (regexyoutubeurl)
{
$(this).html("<iframe width=\"390\" height=\"315\" src=\"http://www.youtube.com/embed/"+regexyoutubeurl[2]+"\" frameborder=\"0\" allowfullscreen></iframe>");
}
});
DEMO: http://jsfiddle.net/9e48p/

The error can either be fixed by Adobe's Flash Player team, or by the Google engineers - you should just ignore it for now. It's connected to Flash Player security settings and the SWF file embedded into the Youtube page. The problem has been reported in the past by IBM, and there is a Mozilla Bugzilla entry as well.
When I deactivate Flash Player in Firefox 16.0.2, the error message disappears. Check comment #37: https://bugzilla.mozilla.org/show_bug.cgi?id=434522#c37
For what it's worth, I'm seeing this bug happen when any flash file,
even ones that have NO actionscript calls (ExternalInterface, etc) in
them at all, is loaded into an iframe on a page where the page domain
and the iframe domain are different. This means that the iframe
problem is caused when there is in fact a cross-domain situation in
place. However, it's not totally clear if there's really actually
attempting to be a cross-domain call that should be prevented and
error'd out.
Because it's nothing that the flash SWF itself is trying to call to do
"Location.toString", and it's nothing about the javascript on the page
doing it, the only choice is that there's something about the flash
plugin itself (9.0.124 is what I'm testing with) that's trying to make
that call up to the parent/top window to do Location.toString().
While the bug is marked as resolved, the test case attached https://bug434522.bugzilla.mozilla.org/attachment.cgi?id=321956 produces the same error message in the latest Firefox version (both in the Firebug console, or the Firefox Error Console window).
Update:
The bug has been filed with Adobe as well in the old bug database: FP-561 "Location.toString" uncaught (security) exception caused by improper Flash plugin behavior (you need an account to see the bug details). The last comment there when the bug was closed:
Tested with the latest Flash Player 10.3.181.34 on Firefox 4 and 5, no
such exception was thrown. So the bug may have been fixed, right? If
you still meet this issue, please file a bug in our new bug system
https://bugbase.adobe.com/ and put a link in the new bug to this
original JIRA report. We are happy to follow up your report in the new
bug system.

Don't ignore this error just because its not related directly to your code.
It seems to occur when your embed is initialy hidden.
Just add ?html5=1 to your embed url. IE8 will still take flash version. or load your video with the Youtube api.

Something is likely wrong with your Iframe url constructor. The error is being thrown in a youtube script that loads in the Iframe. The same error gets thrown with a harcoded html Iframe that isn't dynamically added with your script
<iframe width="390" height="315" src="http://www.youtube.com/embed/UNMLEZrukRU" frameborder="0" allowfullscreen></iframe>
HTML version only demo http://jsfiddle.net/Lgt5f/
Double check the url isn't missing a parameter , otherwise I would check youtube support resources

That issue can be caused by an extension that isn't working properly.
Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).

Ignore that error, it's not related to your code. Just a browser bug.

Stop mobile network proxy from injecting JavaScript

I am using a mobile network based internet connection and the source code is being rewritten when they present the site to the end user.
In the localhost my website looks fine, but when I browse the site from the remote server via the mobile network connection the site looks bad.
Checking the source code I found a piece of JavaScript code is being injected to my pages which is disabling the some CSS that makes site look bad.
I don't want image compression or bandwidth compression instead of my well-designed CSS.
How can I prevent or stop the mobile network provider (Vodafone in this case) from proxy injecting their JavaScript into my source code?

You can use this on your pages. It still compresses and put everything inline but it wont break scripts like jquery because it will escape everything based on W3C Standards
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
On your server you can set the cahce control
"Cache-Control: no-transform"
This will stop ALL modifications and present your site as it is!
Reference docs here
http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.9.5
http://stuartroebuck.blogspot.com/2010/08/official-way-to-bypassing-data.html
Web site exhibits JavaScript error on iPad / iPhone under 3G but not under WiFi

You're certainly not the first. Unfortunately many wireless ISPs have been using this crass and unwelcome approach to compression. It comes from Bytemobile.
What it does is to have a proxy recompress all images you fetch smaller by default (making image quality significantly worse). Then it crudely injects a script into your document that adds an option to load the proper image for each recompressed image. Unfortunately, since the script is a horribly-written 1990s-style JS, it craps all over your namespace, hijacks your event handlers and stands a high chance of messing up your own scripts.
I don't know of a way to stop the injection itself, short of using HTTPS. But what you could do is detect or sabotage the script. For example, if you add a script near the end of the document (between the 1.2.3.4 script inclusion and the inline script trigger) to neuter the onload hook it uses:
<script type="text/javascript">
bmi_SafeAddOnload= function() {};
</script>
then the script wouldn't run, so your events and DOM would be left alone. On the other hand the initial script would still have littered your namespace with junk, and any markup problems it causes will still be there. Also, the user will be stuck with the recompressed images, unable to get the originals.
You could try just letting the user know:
<script type="text/javascript">
if ('bmi_SafeAddOnload' in window) {
var el= document.createElement('div');
el.style.border= 'dashed red 2px';
el.appendChild(document.createTextNode(
'Warning. Your wireless ISP is using an image recompression system '+
'that will make pictures look worse and which may stop this site '+
'from working. There may be a way for you to disable this feature. '+
'Please see your internet provider account settings, or try '+
'using the HTTPS version of this site.'
));
document.body.insertBefore(el, document.body.firstChild);
}
</script>

I'm suprised no one has put this as answer yet. The real solution is:
USE HTTPS!
This is the only way to stop ISPs (or anyone else) from inspecting all your traffic, snooping on your visitors, and modifying your website in flight.
With the advent of Let's Encrypt, getting a certificate is now free and easy. There's really no reason not to use HTTPS in this day and age.
You should also use a combination of redirects and HSTS to keep all of your users on HTTPS.

You provider might have enabled a Bytemobile Unison feature called "clientless personalization". Try accessing the fixed URL http://1.2.3.50/ups/ - if it's configured, you will end up on a page which will offer you to disable all feature you don't like. Including Javascript injection.
Good luck!
Alex.

If you're writing you own websites, adding a header worked for me:
PHP:
Header("Cache-Control: no-transform");
C#:
Response.Cache.SetNoTransforms();
VB.Net:
Response.Cache.SetNoTransforms()
Be sure to use it before any data has been sent to the browser.

I found a trick. Just add:
<!--<![-->
After:
<html>
More information (in German):
http://www.programmierer-forum.de/bmi-speedmanager-und-co-deaktivieren-als-webmaster-t292182.htm#3889392

BMI js it's not only on Vodafone. Verginmedia UK and T-Mobile UK also gives you this extra feature enabled as default and for free. ;-)
In T-mobile it's called "Mobile Broadband Accelerator"
You can Visit:
http://accelerator.t-mobile.co.uk
or
http://1.2.3.50/
to configure it.
In case the above doesn't apply to you or for some reason it's not an option
you could potentially set-up your local proxy (Polipo w/wo Tor)
There is also a Firefox addon called "blocksite"
or as more drastic approach reset tcp connection to 1.2.3.0/24:80 on your firewall.
But unfortunately that wouldn't fix the damage.
Funny enough T-mobile and Verginmedia mobile/broadband support is not aware about this feature! (2011.10.11)

PHP: Header("Cache-Control: no-transform"); Thanks!
I'm glad I found this page.
That Injector script was messing up my php page source code making me think I made an error in my php coding when viewing the page source. Even though the script was blocked with firefox NoScript add on. It was still messing up my code.
Well, after that irritating dilemma, I wanted to get rid of it completely and not just block it with adblock or noscript firefox add ons or just on my php page.
STOP http:// 1.2.3.4 Completely in Firefox: Get the add on: Modify
Headers.
Go to the modify header add on options... now on the Header Tab.
Select Action: Choose ADD.
For Header Name type in: cache-control
For Header Value type in: no-transform
For Comment type in: Block 1.2.3.4
Click add... Then click Start.
The 1.2.3.4 script will not be injected into any more pages! yeah!
I no longer see 1.2.3.4 being blocked by NoScript. cause it's not there. yeah.
But I will still add: PHP: Header("Cache-Control: no-transform"); to my php pages.

If you are getting it on a site that you own or are developing, then you can simply override the function by setting it to null. This is what worked for me just fine.
bmi_SafeAddOnload = null;
As for getting it on other sites you visit, then you could probably open the devtools console and just enter that into there and wipe it out if a page is taking a long time to load. Haven't yet tested that though.

Ok nothing working to me. Then i replace image url every second because when my DOM updates, the problem is here again. Other solution is only use background style auto include in pages. Nothing is clean.
setInterval(function(){ imageUpdate(); }, 1000);
function imageUpdate() {
console.log('######imageUpdate');
var image = document.querySelectorAll("img");
for (var num = 0; num < image.length; num++) {
if (stringBeginWith(image[num].src, "http://1.1.1.1/bmi/***yourfoldershere***")) {
var str=image[num].src;
var res=str.replace("http://1.1.1.1/bmi/***yourfoldershere***", "");
image[num].src = res;
console.log("replace"+str+" by "+res);
/*
other solution is to push img src in data-src and push after dom loading all your data-src in your img src
var data-str=image[num].data-src;
image[num].src = data-str;
*/
}
}
}
function stringEndsWith(string, suffix) {
return string.indexOf(suffix, string.length - suffix.length) !== -1
}
function stringBeginWith(string, prefix) {
return string.indexOf(prefix, prefix.length-string.length) !== -1
}

An effective solution that I found was to edit your hosts file (/etc/hosts on Unix/Linux type systems, C:\Windows\System32\drivers\etc on Windows) to have:
null 1.2.3.4
Which effectively maps all requests to 1.2.3.4 to null. Tested with my Crazy Johns (owned by Vofafone) mobile broadband. If your provider uses a different IP address for the injected script, just change it to that IP.

Header("Cache-Control: no-transform");
use the above php code in your each php file and you will get rid of 1.2.3.4 code injection.
That's all.
I too was suffering from same problem, now it is rectified. Give a try.

I added to /etc/hosts
1.2.3.4 localhost
Seems to have fixed it.

(NS_ERROR_DOCUMENT_NOT_CACHED) through firefox same code works for safari

I am getting (NS_ERROR_DOCUMENT_NOT_CACHED) error when I try to access the Javascript code through firefox.I get this error in the contents tab of HTTPFOX.
I googled and set the parameters of browser in config file as specified in this site but it still doesn't work.
http://code.google.com/p/httpfox/issues/detail?id=20
Can somebody suggest whats going wrong since the same code works fine for safari browser..

If anyone is interested in a solution to this, I believe it's to do with the plugin noscript. Disabling it fixed this, but I have yet to work out what part of noscript was causing the issue. Will update if I find out.
Edit:My issues was with a twitter auth callback. In the Advanced settings of noscript under ABE, in the SYSTEM ruleset, on the line "Accept from LOCAL" I added "*.twitter.com". This allowed callback requests from *twitter.com to return to a local address.

On my macbook I had to uninstall firefox completely to correctly get the content of an ajax response with httpfox. This also implies to remove the firefox profile bij removing this Firefox folder (I could only find it via the terminal and not via Finder):
/Users/<YOURUSER>/Library/Application Support/Firefox
Then install firefox again and install the httpfox add-on.
I tried many cache settings also by entering about:config in the firefox URL however without succes. Be aware that removing the profile settings like I describe will also remove all your personal firefox customization. It concerned firefox 18.0.2 and httpfox 0.8.11.

We used to get the same error when our JavaScript made an XMLHTTPRequest to the server. On the server side, we had java, and the java response, the content type was not explicitly set to "text/html". When that was done
resp.setContentType("text/html");
the error went away.

Uncaught Error: SECURITY_ERR: DOM Exception 18 when I try to set a cookie

I get the following error in Chrome's developer tools window when I try to set a cookie using this jQuery plugin:
Uncaught Error: SECURITY_ERR: DOM Exception 18
What does this error mean and how can I fix it? I get the same error when I use this jQuery plugin.

You're most likely using this on a local file over the file:// URI scheme, which cannot have cookies set. Put it on a local server so you can use http://localhost.

I also had this issue while developping on HTML5 in local.
I had issues with images and getImageData function.
Finally, I discovered one can launch chrome with the --allow-file-access-from-file command switch, that get rid of this protection security.
The only thing is that it makes your browser less safe, and you can't have one chrome instance with the flag on and another without the flag.

You can also "fix" this by replacing the image with its inline Base64 representation:
img.src= "data:image/gif;base64,R0lGODlhCwALAIAAAAAA3pn/ZiH5BAEAAAEALAAAAAALAAsAAAIUhA+hkcuO4lmNVindo7qyrIXiGBYAOw==";
Useful, when you do not intend to publish the page on the web, but instead use it on local machines only.

Faced with the same situation playing with Javascript webworkers. Unfortunately Chrome doesn't allow to access javascript workers stored in a local file.
One kind of workaround below using a local storage is to running Chrome with --allow-file-access-from-files (with s at the end), but only one instance of Chrome is allowed, which is not too convenient for me. For this reason i'm using Chrome Canary, with file access allowed.
BTW in Firefox there is no such an issue.

This error pops up, if you try to create a web worker with data URI scheme.
var w = new Worker('data:text/javascript;charset=utf-8,onmessage%20%3D%20function()%20%7B%20postMessage(%22pong%22)%3B%20%7D'); w.postMessage('ping');
It's not allowed according to the standard: http://www.whatwg.org/specs/web-apps/current-work/multipage/workers.html#dom-worker

I had this issue when using the history API.
window.history.pushState(null, null, URL);
Even with a local server (localhost), you want to add 'http://' to your URL so that you have something similar to:
http://localhost...

I wasn't completely happy by the --allow-file-access-from-files solution, because I'm using Chrome as my primary browser, and wasn't really happy with this breach I was opening.
Now I'm using Canary ( the chrome beta version ) for my development with the flag on.
And the mere Chrome version for my real blogging : the two browser don't share the flag !

One can also receive this error if using the new (so far webkit only) notification feature before getting permission.
First run:
<!-- Get permission -->
<button onclick="webkitNotifications.requestPermission();">Enable Notifications</button>
Later run:
// Display Notification:
window.webkitNotifications.createNotification('image', 'Title', 'Body').show();
The request permission functions needs to be triggered from an event caused by the user, otherwise it won't be displayed.

I was been getting that error in mobile safari when using ASP.NET MVC to return a FileResult with the overload that returns a file with a different file name than the original. So,
return File(returnFilePath, contentType, fileName);
would give the error in mobile safari, where as
return File(returnFilePath, contentType);
would not.
I don't even remember why I thought what I was doing was a good idea. Trying to be clever I guess.