[1] IRC logs: freenode / #whatwg / 20100818 ( (2010-08-20 08:10:40 +09:00 版)) <http://krijnhoetmer.nl/irc-logs/whatwg/20100818>

[2] Fix mismatched HTMLMediaElement currentTime exception in domintro · whatwg/html@d152cb6 (2015-10-27 12:48:21 +09:00 版) <https://github.com/whatwg/html/commit/d152cb6ca1ece1161d35bd1c5fd927d1070a10e6>

[3] 27830 – Notes: Media Element currentTime setting with no src defined (2016-02-02 14:26:01 +09:00 版) <https://www.w3.org/Bugs/Public/show_bug.cgi?id=27830>