- [2] behold! placeholders for multimedia elements., Hixie, , https://github.com/whatwg/html/commit/ca90a8be5f305c34a0b73d8af591ca358ef3951d#diff-41cf6794ba4200b839c53531555f0f3998df4cbb01a4d5cb0b94e3ca5e23947d
- [3] <iframe> section header, Hixie, , https://github.com/whatwg/html/commit/78a7b2ab829d3010266c0e6a9bb846efef0dfa09#diff-41cf6794ba4200b839c53531555f0f3998df4cbb01a4d5cb0b94e3ca5e23947d
- [4] embed, object, param, map, area headers. Make comments and PIs explic…, Hixie, , https://github.com/whatwg/html/commit/50796195358086318c5e0cca8dc64c679974ef5c#diff-41cf6794ba4200b839c53531555f0f3998df4cbb01a4d5cb0b94e3ca5e23947d
[1] Web Applications 1.0 r364 make 'embedded content' an actual type of content
( ( 版))
http://html5.org/tools/web-apps-tracker?from=363&to=364