Cromecast Device detection application Like Google chrome Extension - google-chrome-extension

I am new for Chromecast Please help me out ,
I have to detect chromecast devices as same like google chromecast extension and send url for casting to selected device ...
I want to develop a html5 application where user can select chromcast devices and send url to it

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I want to send static picture to chromecast from nodejs app. I don't need to send video or audio. I simply want to display some status information on TV. Can I use chromecast for this? Is there any nodejs module for this?
Or maybe more universal approach. Is any way to make chromecast to display fullscreen webpage on TV?

Getting location in web browser with Flutter?

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How Google cookies distinguish new device and new browser but old device

I want to ask how Google manages to distinguish between new device and new browser used using cookies.
As for example, when we open Gmail with a new browser (say Firefox) from the same device, we don't get any varification mail from Gmail team. But when we do the same with a new device we get a mail where Gmail team varifies whether we have got a new device. How does Google make sure whether we are using new device/ same device but new browser? I know that cookies are both browser and device dependant. So how is it possible to analyse new device even when new browser also acts as a new user?

Implementing twitter audio card like soundcloud

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The only way to implement an audio card for yourself would be to use Twitter's player card option. On mobile, that will end up redirecting to a browser.
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Getting Original Phone useragent with J2ME

Kinda new to J2ME. I was wondering how I could go about in getting a J2ME midlet to send the original user agent of the mobile device to a server instead of: "Profile/MIDP-1.0 Configuration/CLDC-1.0"?
The problem here is that I wont be able to kno the specific device the midlet runs on in order to manually set the useragent. This is because I'm developing a J2ME SDK that will be widely distributed for advertising purposes within other applications. It's like a plugin that fetches and display ads within an app.
For example, if the midlet runs on a sonyericsson, how can i get the midlet to send the original phone useragent:
"SonyEricssonW300i/R4EA Browser/NetFront/3.3 Profile/MIDP-2.0 Configuration/CLDC-1.1"
to my server without actually using
"setRequestProperty(" User-Agent", "SonyEricssonW300i/R4EA Browser/NetFront/3.3 Profile/MIDP-2.0 Configuration/CLDC-1.1")" ?
I want to detect the true device using WURFL on the server-side. If the midlet sends "Profile/MIDP-1.0 Configuration/CLDC-1.0" as the useragent, WURFL will detect the phone as "Generic J2ME midlet" instead of SonyEricsson W300.
I'd really appreciate it if someone assist.
The fool-proof way is to detect the user-agent when the web browser requests the jad, and set the value in the returned jad file.

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