HTML5 Video, minus Ogg

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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.

SCORM security (two kinds of SCORM people)

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I’ve had a flurry of emails and messages regarding my SCORM cheat the past few days, and have received feedback from a number of well-regarded SCORM aficionados, some of whom contributed to the standard and helped make SCORM what it is today. This is wonderful, I’m very happy to hear from everyone, especially regarding such an engaging topic.

But as I hear more from these seasoned SCORM pros, I’ve made (what I believe to be) an interesting observation: there is a sharp division between die-hard SCORM developers and casual users. I suppose I’ve felt this way for a long time, but it’s really coming into focus this week. Let me try to define the camps.

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.

Lazy loading excanvas.js

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I started by developing an HTML example page that used the canvas element and had the excanvas.js file hard-coded. Everything worked as planned. I then took out the hard-coded excanvas.js file and replaced it with a JavaScript-based lazy loader. Guess what? It didn’t work. A simple modification to the excanvas.js file fixed the problem.