JavaScript

For Your Reading Pleasure: EasyCaptions

Introducing EasyCaptions: A simple system for adding captions and an interactive transcript to online videos. EasyCaptions uses progressive enhancement to provide the best possible experience for all visitors, regardless of their browser’s JavaScript, HTML5 or Flash support. Demonstration Background I don’t produce much video these days, but as a web surfer I often encounter other people’s videos, and was recently impressed by two video implementations: a TED Talks video page, and an HTML5 video demo produced by Bruce Lawson. The TED Talks page had a great feature I’d never really seen anywhere else: an interactive transcript of the video that …

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HTML5 Video, minus Ogg

Mozilla, the makers of Firefox, refuse to support the MP4/H.264 standard because it isn’t open-source and free from licensing constraints. Without Ogg, Firefox’s HTML5 video is rendered useless and requires a Flash-based fallback system. However, Firefox’s handling of the video element breaks the fallback mechanism. A scripted solution is required.

Here’s a simple script that will detect whether HTML 5 video is supported in the browser, and if it is, will check to see if this is Firefox. If yes, it deletes the specified video element but leaves the Flash fallback in its place.

Cheating in SCORM

I’m always surprised how little people talk about cheating in e-learning; maybe it’s a fear of revealing just how easy it can be. The fact is, SCORM — the most common communication standard in e-learning — is fairly easy to hack. I’ve whipped up a proof-of-concept bookmarklet that when clicked will set your SCORM course to complete with a score of 100 (works with both SCORM 1.2 and 2004).

Gotchas in Internet Explorer 8

Internet Explorer 8 (IE8) is at Release Candidate 1, which means it will be released very shortly. IE8 is a brand-new browser and will represent a considerable shift from IE7/IE6; it will follow standards more closely and will offer much improved CSS 2.1 support. However, because of some of these changes, it is also widely understood that IE8 might ‘break’ websites that have relied on IE-specific hacks targeted at previous versions if Internet Explorer.

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