[4] [[HTTP]] の[[状態符号]] [DFN[[CODE[103]]]] は、いくつかの異なる用法で用いられているようです。

[1] [CITE@en-gb[HTTP Status Codes]]
([[Dan McCormick]] 著, [TIME[2011-10-07 11:42:55 +09:00]] 版)
<http://www.mccormickfamily.com/become-an-author/56-http-status-codes#103>

[2] [CITE[ResumableHttpRequestsProposal - gears - A proposal for supporting resumable POST/PUT HTTP requests in HTTP/1.0. - Improving Your Web Browser - Google Project Hosting]]
( ([TIME[2012-02-19 13:12:21 +09:00]] 版))
<http://code.google.com/p/gears/wiki/ResumableHttpRequestsProposal>

[3] [CITE@en[draft-kazuho-early-hints-status-code-00 - An HTTP Status Code for Indicating Hints]] ([TIME[2016-11-01 17:11:34 +09:00]]) <https://tools.ietf.org/html/draft-kazuho-early-hints-status-code-00>

[5] [CITE@en[mod_http2 - Apache HTTP Server Version 2.4]]
( ([TIME[2017-01-15 21:40:17 +09:00]]))
<https://httpd.apache.org/docs/2.4/mod/mod_http2.html#H2EarlyHints>

[6] [CITE@en[HTTP 103 Status · Issue #134 · mozilla/standards-positions]]
([TIME[2019-02-07 16:05:30 +09:00]])
<https://github.com/mozilla/standards-positions/issues/134>

[7] [CITE@en[671310 - Support 103 Early Hints in HTTP/2. - chromium]]
([TIME[2020-12-18T05:25:13.000Z]])
<https://bugs.chromium.org/p/chromium/issues/detail?id=671310>