Closed
Bug 459291
Opened 17 years ago
Closed 12 years ago
add or improve fallback in canvas examples
Categories
(Developer Documentation Graveyard :: HTML, defect)
Developer Documentation Graveyard
HTML
Tracking
(Not tracked)
RESOLVED
WONTFIX
People
(Reporter: info, Unassigned)
References
()
Details
(Whiteboard: u=webdev p=0 c=HTML)
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1b2pre) Gecko/20081008 Minefield/3.1b2pre
Build Identifier:
The <canvas> samples should fail simply and consistently in lesser browsers.
Reproducible: Always
Steps to Reproduce:
1. Visit examples like https://bugzilla.mozilla.org/attachment.cgi?id=273497 and http://developer.mozilla.org/samples/canvas-tutorial/2_1_canvas_rect.html in MSIE 7 and Google Chrome.
Actual Results:
You get no output and no warning from the fancy canvas text example; the basic canvas demo has a too-specific "You need Safari or Firefox 1.5+ to see this demo" alert(). Both have no fallback within the <canvas> tag.
Expected Results:
I think all the examples should have a consistent <canvas> fallback, e.g.
<p>This example requires a browser that supports the <a href="http://www.w3.org/html/wg/html5/">HTML5</a> <canvas> feature.</p>
and, when necessary, a more generic alert().
Don't let this polish request block MDC examples, they are awesome motivators!
I added a _View this example_ link to http://developer.mozilla.org/en/Canvas_tutorial/Basic_usage with this fallback text, it seems to work in FF 3.1, Chrome, and MSIE 7. Maybe do it "right" once and in other examples just have <canvas> Your fallback text here </canvas>
Assignee | ||
Updated•13 years ago
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Component: Documentation Requests → Documentation
Updated•12 years ago
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Component: Documentation → General
Product: Mozilla Developer Network → Developer Documentation
Updated•12 years ago
|
Whiteboard: u=webdev p=0
Updated•12 years ago
|
Component: General → HTML
Updated•12 years ago
|
Whiteboard: u=webdev p=0 → u=webdev p=0 c=HTML
Comment 2•12 years ago
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||
IMHO this is no longer relevant; browsers that don't support <canvas> are incredibly rare now.
Status: UNCONFIRMED → RESOLVED
Closed: 12 years ago
Resolution: --- → WONTFIX
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Description
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