Manual:$wgResponsiveImages/ja

詳細
高解像度ディスプレイ向けに高解像度の画像を出力するかどうかです.

これは主に、モバイルおよびタブレットのブラウザーや、"Retina" MacBook Pro のような新しいラップトップの一部を対象としています. On these high-DPI devices, raster images appear blurry or pixelated by default without special treatment.

サムネイル画像を生成する際に、リクエストされたサイズだけではなくその 1.5 倍や 2 倍のサイズのサムネイルもレンダリングします. The HTML5  attribute is included on the   specifying these larger images for the appropriate display densities.

WebKit has added native srcset support as of August 2013, but this will take some time to roll out to released browsers.

For current browsers, compatibility JavaScript is loaded which checks  for most browsers, and a compatibility fallback for IE 10, and applies srcset -> src change automatically. On browsers with native  support, this disables itself automatically.

既知の制限
Currently (as of 1.21) this code applies only to images created through Linker methods; image galleries and file: page detail displays are not currently affected. This should be changed at some point by migrating support lower down in the MediaHandler arena.

Display densities
Currently (as of 1.21) the densities used (1.5x and 2x) are hardcoded and not configurable. 1x is the implied default density of the main image.