[1] Only expose FileReaderSync in dedicated and shared workers. (mkruisselbrink著, ) <https://github.com/w3c/FileAPI/commit/6a24b10486aca75a85b95c979ae362f130a69523>
[2] Deprecations and Removals in Chrome 58 | Web | Google Developers ( ()) <https://developers.google.com/web/updates/2017/03/chrome-58-deprecations>
[3] Deprecations and Removals in Chrome 59 | Web | Google Developers () <https://developers.google.com/web/updates/2017/04/chrome-59-deprecations>
[4] Remove readyState checks from FileReaderSync methods. (mkruisselbrink著, ) <https://github.com/w3c/FileAPI/commit/588597b35e10fa027af945e7e5443b3ac777f8af>
[5] readyState checks for FileReaderSync methods don't make sense · Issue #96 · w3c/FileAPI () <https://github.com/w3c/FileAPI/issues/96>
[6] Remove readyState checks from FileReaderSync methods. (mkruisselbrink著, ) <https://github.com/w3c/FileAPI/commit/588597b35e10fa027af945e7e5443b3ac777f8af>