Attribute matching is ASCII case-insensitive in HTML.

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS document.querySelectorAll('[id^=target]')[0].matches('[data-æøå]') is true
PASS document.querySelectorAll('[id^=target]')[1].matches('[data-æøå]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches('[data-æøå]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches('[data-æøå]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches('[data-Æøå]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches('[data-Æøå]') is true
PASS document.querySelectorAll('[id^=target]')[2].matches('[data-Æøå]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches('[data-Æøå]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches('[data-ÆØÅ]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches('[data-ÆØÅ]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches('[data-ÆØÅ]') is true
PASS document.querySelectorAll('[id^=target]')[3].matches('[data-ÆØÅ]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches('[data-æØå]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches('[data-æØå]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches('[data-æØå]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches('[data-æØå]') is false
PASS document.querySelectorAll('[id^=target]')[0].matches('[Data-æøå="WebKit!"]') is true
PASS document.querySelectorAll('[id^=target]')[1].matches('[Data-æøå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches('[Data-æøå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches('[Data-æøå="WebKit!"]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches('[Data-Æøå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches('[Data-Æøå="WebKit!"]') is true
PASS document.querySelectorAll('[id^=target]')[2].matches('[Data-Æøå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches('[Data-Æøå="WebKit!"]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches('[Data-ÆØÅ="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches('[Data-ÆØÅ="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches('[Data-ÆØÅ="WebKit!"]') is true
PASS document.querySelectorAll('[id^=target]')[3].matches('[Data-ÆØÅ="WebKit!"]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches('[Data-æØå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches('[Data-æØå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches('[Data-æØå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches('[Data-æØå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[0].matches('[DATA-æøå^="Web"]') is true
PASS document.querySelectorAll('[id^=target]')[1].matches('[DATA-æøå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches('[DATA-æøå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches('[DATA-æøå^="Web"]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches('[DATA-Æøå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches('[DATA-Æøå^="Web"]') is true
PASS document.querySelectorAll('[id^=target]')[2].matches('[DATA-Æøå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches('[DATA-Æøå^="Web"]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches('[DATA-ÆØÅ^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches('[DATA-ÆØÅ^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches('[DATA-ÆØÅ^="Web"]') is true
PASS document.querySelectorAll('[id^=target]')[3].matches('[DATA-ÆØÅ^="Web"]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches('[DATA-æØå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches('[DATA-æØå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches('[DATA-æØå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches('[DATA-æØå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[0].matches(':root :matches(body, html) [data-æøå]') is true
PASS document.querySelectorAll('[id^=target]')[1].matches(':root :matches(body, html) [data-æøå]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches(':root :matches(body, html) [data-æøå]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches(':root :matches(body, html) [data-æøå]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches(':root :matches(body, html) [data-Æøå]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches(':root :matches(body, html) [data-Æøå]') is true
PASS document.querySelectorAll('[id^=target]')[2].matches(':root :matches(body, html) [data-Æøå]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches(':root :matches(body, html) [data-Æøå]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches(':root :matches(body, html) [data-ÆØÅ]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches(':root :matches(body, html) [data-ÆØÅ]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches(':root :matches(body, html) [data-ÆØÅ]') is true
PASS document.querySelectorAll('[id^=target]')[3].matches(':root :matches(body, html) [data-ÆØÅ]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches(':root :matches(body, html) [data-æØå]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches(':root :matches(body, html) [data-æØå]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches(':root :matches(body, html) [data-æØå]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches(':root :matches(body, html) [data-æØå]') is false
PASS document.querySelectorAll('[id^=target]')[0].matches(':root :matches(body, html) [Data-æøå="WebKit!"]') is true
PASS document.querySelectorAll('[id^=target]')[1].matches(':root :matches(body, html) [Data-æøå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches(':root :matches(body, html) [Data-æøå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches(':root :matches(body, html) [Data-æøå="WebKit!"]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches(':root :matches(body, html) [Data-Æøå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches(':root :matches(body, html) [Data-Æøå="WebKit!"]') is true
PASS document.querySelectorAll('[id^=target]')[2].matches(':root :matches(body, html) [Data-Æøå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches(':root :matches(body, html) [Data-Æøå="WebKit!"]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches(':root :matches(body, html) [Data-ÆØÅ="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches(':root :matches(body, html) [Data-ÆØÅ="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches(':root :matches(body, html) [Data-ÆØÅ="WebKit!"]') is true
PASS document.querySelectorAll('[id^=target]')[3].matches(':root :matches(body, html) [Data-ÆØÅ="WebKit!"]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches(':root :matches(body, html) [Data-æØå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches(':root :matches(body, html) [Data-æØå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches(':root :matches(body, html) [Data-æØå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches(':root :matches(body, html) [Data-æØå="WebKit!"]') is false
PASS document.querySelectorAll('[id^=target]')[0].matches(':root :matches(body, html) [DATA-æøå^="Web"]') is true
PASS document.querySelectorAll('[id^=target]')[1].matches(':root :matches(body, html) [DATA-æøå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches(':root :matches(body, html) [DATA-æøå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches(':root :matches(body, html) [DATA-æøå^="Web"]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches(':root :matches(body, html) [DATA-Æøå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches(':root :matches(body, html) [DATA-Æøå^="Web"]') is true
PASS document.querySelectorAll('[id^=target]')[2].matches(':root :matches(body, html) [DATA-Æøå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches(':root :matches(body, html) [DATA-Æøå^="Web"]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches(':root :matches(body, html) [DATA-ÆØÅ^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches(':root :matches(body, html) [DATA-ÆØÅ^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches(':root :matches(body, html) [DATA-ÆØÅ^="Web"]') is true
PASS document.querySelectorAll('[id^=target]')[3].matches(':root :matches(body, html) [DATA-ÆØÅ^="Web"]') is true
PASS document.querySelectorAll('[id^=target]')[0].matches(':root :matches(body, html) [DATA-æØå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[1].matches(':root :matches(body, html) [DATA-æØå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[2].matches(':root :matches(body, html) [DATA-æØå^="Web"]') is false
PASS document.querySelectorAll('[id^=target]')[3].matches(':root :matches(body, html) [DATA-æØå^="Web"]') is false
PASS successfullyParsed is true

TEST COMPLETE