imported/w3c/web-platform-tests/mimesniff/mime-types/charset-parameter.window.html 
 
Is a flaky text failure on iOS arm64 release ToT and started running on the arm64 release queue around 251325@main.

HISTORY: 
https://results.webkit.org/?suite=layout-tests&test=imported/w3c/web-platform-tests/mimesniff/mime-types/charset-parameter.window.html 

DIFF:
@@ -1,3 +1,5 @@
+
+Harness Error (TIMEOUT), message = null
 
 PASS Loading data…
 PASS text/html;charset=gbk
@@ -10,11 +12,11 @@
 PASS text/html ;charset=gbk
 PASS text/html; charset=gbk
 PASS text/html;charset= gbk
-FAIL text/html;charset= "gbk" assert_equals: expected "UTF-8" but got "GBK"
+TIMEOUT text/html;charset= "gbk" Test timed out
 PASS text/html;charset=
 No newline at end of file
 gbk
-PASS text/html;charset=
 No newline at end of file
-gbk
+TIMEOUT text/html;charset=
 No newline at end of file
+gbk Test timed out
 FAIL text/html;
 No newline at end of file
 charset=gbk assert_equals: expected "UTF-8" but got "GBK"
 FAIL text/html;
 No newline at end of file
@@ -23,11 +25,11 @@
 PASS text/html;charset='gbk
 PASS text/html;charset=gbk'
 PASS text/html;charset=';charset=GBK
-PASS text/html;test;charset=gbk
+TIMEOUT text/html;test;charset=gbk Test timed out
 PASS text/html;test=;charset=gbk
 PASS text/html;';charset=gbk
 PASS text/html;";charset=gbk
-PASS text/html ; ; charset=gbk
+TIMEOUT text/html ; ; charset=gbk Test timed out
 PASS text/html;;;;charset=gbk
 FAIL text/html;charset= ";charset=GBK assert_equals: expected "GBK" but got "UTF-8"
 FAIL text/html;charset=";charset=foo";charset=GBK assert_equals: expected "GBK" but got "UTF-8"

Diff URL:
https://build.webkit.org/results/Apple-iOS-15-Simulator-Release-arm64-WK2-Tests/253978@main%20(488)/imported/w3c/web-platform-tests/mimesniff/mime-types/charset-parameter.window-pretty-diff.html