there is also the apngasm kickstarter project (already funded) that is building tools for legacy browsers to work with apng ... including pure javascript based

there is also the apngasm kickstarter project (already funded) that is building tools for legacy browsers to work with apng ... including pure javascript based graceful degradation. https://www.kickstarter.com/projects/374397522/apngasm-foss-animated-png-tools-and-apng-standardi https://www.kickstarter.com/projects/374397522/apngasm-foss-...