Firefox has recently shipped a PDF viewer using canvas, suggest a review of the best practices in reference to how canvas it is used in the PDF viewer
Resolving this may requiring reopening issue 205:
From the decision itself:
== Revisiting this Issue ==
This issue can be reopened if new information come up. Examples of
possible relevant new information include:
* Identification of one or more actual tools (more is better) with
requirements that can't reasonably (as determined by the authors of
these tools) by satisfied by the existing HTML Canvas functionality...
PDF.js could very well be one such tool.
Are there specifics you're looking for in terms of best practices? Are we looking to consider recommending that canvas can be used for text editing and/or giving some guidance for accessibility? Give me a little more info (a link to some other examples would be helpful).