YouTube
The YouTube application available from the eShop is a web-browser. Like the main browser this uses WebKit. All data is downloaded with plaintext HTTP.
User-Agent and Browser Versions
The user-agent format is almost identical to the main browser: "Mozilla/5.0 (Nintendo 3DS; U; ; Factory Media Production) Version/<version>.<region>". <lang> is "en", "fr", etc. <region> is "US", "EU", etc. See below for <version>.
| Browser version | USA/EUR CDN Title-version | Notes |
|---|---|---|
| 1.7498 | v16 and v0 | Initial app version. |
| 1.7498 | v1056 and v1040 | First app update. This build uses the v7.0 NCCH encryption for the main CXI, this was the first retail title to use this. |
RomFS
The RomFS only contains CROs("/cro/") and the CRR("/.crr/static.crr"), the following is the "/cro/" contents:
- JavaScriptCore_CTR.cro
- WebCore_CTR.cro
- WebkitMediaPlayer_CTR.cro
- WebKit_CTR.cro
- static.crs
Webkit
Looks like the YouTube application uses a newer version of Webkit than the Internet Browser applet. It has the ability to construct Blobs, of course the HTML5 video element, and possibly the Audio element (Visible, but untested). It also supports the localStorage API. Here a list of exposed apis http://pastie.org/private/cmtppzyqmopzi9umhg8za here. (Sorry, it will not let me put in a link)
embedded.ctr
Inside all webkit applications for the 3DS, there is a pseudo-webserver running that links to a structure inside ExeFS. This structure provides a list of urls under the domain "http://embeded.ctr/". This also possibly exists for the Internet Browser, but is unused. This same structure may be used for the Miiverse applet when in offline mode.