whitelist content:attr(placeholder), universally supported

1 files changed, 1 insertions, 0 deletions

diff --git a/itjs.php b/itjs.php
index 88fe03f..332e0dc 100644
--- a/itjs.php
+++ b/itjs.php
@@ -60,6 +60,7 @@ else if (it::match('\.css', $file))
 			':valid:' => ":", # hack for iOS datetime
 			'([^/])\*(\w)' => '$1$2',
 			'svg\..*' => "", # ignore svg styles
+			'\battr\(.*?\)' => "'x'", # ignore content:attr(placeholder)
 			),
 			$data
 		);