Quote:
Originally Posted by KevinH
Huh?
All epub3 support multimedia. Only some epub3 readers are broken.
Instead of supporting you own apps (which are a pain) simply provide a list of known good epub3 readers. And that includes almost all modern browsers and any epub3 reader that uses those engines. Many are completely free to download and work on all major platforms, including iOS and Android.
Make it clear that your epub3 uses multimedia so that broken e-ink users can self select away
Readium and Thorium are good examples of Browser based epub3 readers that work well on multiple platforms.
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The only challenge is that objective comparison of what an EPUB reader can and cannot do is impossible to find. With the EPUB code below, I can see an HTML test score in an IFRAME.
Code:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:epub="http://www.idpf.org/2007/ops">
<head>
<title></title>
<style>
.container {
position: relative;
width: 100%;
height: 100%;
}
.frr {
max-width: 100%;
width:400px;
height: 600px;
width: auto\9; /* IE8 */
}
.iframe {
width: 100%;
height: 500px;
}
</style>
</head>
<body>
<div class="frr">
<iframe src="https://html5test.com" title="Iframe Example" class="frr"></iframe>
</div>
</body>
</html>
And what's even more interesting, you can also see what is partially supported. When you click on the circle, you will see what is not supported!
These are different test results:
Firefox version 90: 513
Sigil preview window:
523
Gitden Reader: 506
PageEdit asks for permission to open the website in the browser. So I'm not sure whether the Gitden app itself displays the website or whether it also displays the website in a redirected browser view.
Since none of the EPUB readers have an inspection mode except for IOS, it is very difficult to investigate erroneous displays in an EPUB reader.
As for the Sigil preview window
, a big compliment from me for the high degree of support for HTML mode!
