What is the purpose of a “Refresh Token”?

Basically, refresh tokens are used to get new access token. To clearly differentiate these two tokens and avoid getting mixed up, here are their functions given in The OAuth 2.0 Authorization Framework: Access tokens are issued to third-party clients by an authorization server with the approval of the resource owner. The client uses the access … Read more

Embed YouTube video – Refused to display in a frame because it set ‘X-Frame-Options’ to ‘SAMEORIGIN’ [duplicate]

You must ensure the URL contains embed rather watch as the /embed endpoint allows outside requests, whereas the /watch endpoint does not. <iframe width=”420″ height=”315″ src=”https://www.youtube.com/embed/A6XUVjK9W4o” frameborder=”0″ allowfullscreen></iframe>

How to embed an autoplaying YouTube video in an iframe?

This works in Chrome but not Firefox 3.6 (warning: RickRoll video): <iframe width=”420″ height=”345″ src=”http://www.youtube.com/embed/oHg5SJYRHA0?autoplay=1″ frameborder=”0″ allowfullscreen></iframe> The JavaScript API for iframe embeds exists, but is still posted as an experimental feature. UPDATE: The iframe API is now fully supported and “Creating YT.Player objects – Example 2” shows how to set “autoplay” in JavaScript.

YouTube API to fetch all videos on a channel

You need to look at the YouTube Data API. You will find there documentation about how the API can be accessed. You can also find client libraries. You could also make the requests yourself. Here is an example URL that retrieves the latest videos from a channel: https://www.googleapis.com/youtube/v3/search?key={your_key_here}&channelId={channel_id_here}&part=snippet,id&order=date&maxResults=20 After that you will receive a JSON … Read more

Use a content script to access the page context variables and functions

Underlying cause: Content scripts are executed in an “isolated world” environment. Solution: Inject the code into the page using DOM – that code will be able to access functions/variables of the page context (“main world”) or expose functions/variables to the page context (in your case it’s the state() method). Note in case communication with the … Read more

How do I get a YouTube video thumbnail from the YouTube API?

Each YouTube video has four generated images. They are predictably formatted as follows: https://img.youtube.com/vi/<insert-youtube-video-id-here>/0.jpg https://img.youtube.com/vi/<insert-youtube-video-id-here>/1.jpg https://img.youtube.com/vi/<insert-youtube-video-id-here>/2.jpg https://img.youtube.com/vi/<insert-youtube-video-id-here>/3.jpg The first one in the list is a full size image and others are thumbnail images. The default thumbnail image (i.e., one of 1.jpg, 2.jpg, 3.jpg) is: https://img.youtube.com/vi/<insert-youtube-video-id-here>/default.jpg For the high quality version of the thumbnail use a … Read more