[1] fetchのabortは、 fetch を次のようにします。
[8] Fix normative requirements for the timeout attribute (including for sync... · 2677cc2 · whatwg/xhr ( ( 版)) <https://github.com/whatwg/xhr/commit/2677cc2e0fe79d290437c3ea9ff370a5d795294b>
[5] Abortable fetch (jakearchibald著, ) <https://github.com/whatwg/fetch/commit/0bcd5dfc71ef44319873887f4b83119bd6d0b71d>
[6] Aborting a fetch: The Next Generation · Issue #447 · whatwg/fetch () <https://github.com/whatwg/fetch/issues/447>
[7] Fetch abort & no-cors requests · Issue #563 · whatwg/fetch () <https://github.com/whatwg/fetch/issues/563>
[4] Aborting fetch by jakearchibald · Pull Request #523 · whatwg/fetch () <https://github.com/whatwg/fetch/pull/523>
[9] Align with Fetch's upcoming abort revamp (jakearchibald著, ) <https://github.com/whatwg/xhr/commit/1a8f6910dfc1bf4edc46b23076380cf4cedeaca0>
[10] Updating to fit with fetch aborting by jakearchibald · Pull Request #152 · whatwg/xhr () <https://github.com/whatwg/xhr/pull/152>
[11] Abortable fetch | Web | Google Developers () <https://developers.google.com/web/updates/2017/09/abortable-fetch?utm_source=feed&utm_medium=feed&ut>