Is it possible to find foreign instances of certain website? Ofc theese are independently opened tabs (not by window.open). I need to prevent user from opening 2 tabs, and send message to previously opened tab to inform that it's impossible to op...

Good day to all.  I need to do this:  When user X press a button user Y sees a photo. Before that user Y sees nothing.   I did this like this: I created a database on a mysql server and created a table with photos and flags. When user X presses the b...

I'm trying to build an Extension which sends data from the popup.html to the tab dome, but I can't get the sendMessage to work and I don't understand why. I'm following this guidline: https://developer.chrome.com/extensions/messaging....

Is there a way for the parent to pass-in a reference of an object declared in a function in the parent window to be accessible to a child iFrame?  Using postMessage doesn't do the trick, especially as IE9 doesn't support objects and data need...

I'm trying to implement a mechanism to send textual data (JSON for instance) in from page to page, using javascript at the same machine.  I found some code and wrapped it but it only works at the same page.  At the moment I don't want to use...

I'm developing a WPF application with only a WebBrowser that launch a HTML page with JavasCript. I also have some C# methods.  I'm looking for a good way to launch my C# methods in JavaScript, with parameters and if possible callbacks.  For n...

I have recently started to look at inter-browsers communications, and got paricularly interested in webRTC. I am trying at the moment to build a file transfer through a Data Channel with the beginner oriented library provided here :   https://github....

I have a requirement to use two different instances of a google chrome browser and then establish the communication between two different extensions in the respective instances.  In order to have different instances of the google chrome browser I lau...

I have different views each created by a different controller. At a particular time only one of the views is visible.   I want to switch from one view to another view through a function of the controller of the first view and after that I want to cal...

I'm creating my first watchface which requires a configuration page where two strings can be stored (a title and a message).  I'm not too familiar with all the communication things because there aren't really any full on examples out ther...