Tag: Acid2

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Acid2 reference image.After looking at how Safari 3.1 handles the Acid2 test, and finding that under some circumstances/platforms it fails the test, I realized: that one line, with the eyes, has been the cause of most regressions in browsers that previously passed the test.

Rows 4-5 test fallback behavior for objects. The idea is that if a page tries to load an external resource, but can’t—the file is missing, the server’s down, the network’s slow, the browser doesn’t have the right plugin, etc.—the page can provide alternate content. And it can be nested, so you can try, say, a video clip that falls back to an SVG image that falls back to a PNG that falls back to text. Continue reading →

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So who’s next? Well, Opera 9 beta 1 is very close—there’s a pair of red squares that should be black, but that’s it. Neither IE7 nor Firefox 1.5 will have much in the way of Acid2-related fixes, though the trunk builds of Firefox show improvement, so 2.0 has a chance 3.0 might make it will pass (since 2.0 will use the same engine as 1.5).

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On Sunday, a development version of Konqueror passed the Acid2 test. In the comments, someone posted a screenshot of iCab also passing the Acid2 test.

I did a double-take. iCab? Das Internet-Taxi für den Mac? The browser with the nice “Make iCab smile” campaign to encourage non-broken HTML on websites but CSS capabilities that have rivaled Netscape 4 as little better than a bad joke? That has been in perpetual beta for years with no sign of shipping a final release?

So I did the only thing I could do. I downloaded the new beta and tried it. Not only did it nearly pass Acid2 (there was a narrow white line across the middle of the face) but it actually handled all the layouts on my own site… something which it had always failed at spectacularly before.

The WaSP Buzz posted a congratulatory note to both this morning. Strangely, iCab is the first browser available to the general public that passes Acid2. The up-to-date Safari is still sitting inside Apple’s development labs, and while you can download the source for the updated Konqueror, you’ll have to wait for KDE 3.4.2—or possibly 3.5—to be able to use it yourself without running a bleeding-edge desktop. Update: Apple has just launched CVS access to WebCore, putting Safari in the same situation as Konqueror: you can download and compile the latest source code if you want, but if you just want to grab an installer, you’re gonna have to wait.

Follow-up in 2024: I’m surprised to discover that iCab still exists, and is still developed — though in 2020 the author rewrote it so it uses macOS’ built-in web renderer (like Safari) and not its own engine anymore.