UserLogin: Don't rely on jQuery prop('tabindex') to map to tabIndex

Follows-up I9b03d519af43d.

There is a hardcoded set of exceptions in jQuery core right now
that map these common mistakes for back-compat. But this is
undocumented/unsupported legacy behaviour for a very small subset
of properties.

Change-Id: I9cfef0bc6a088e4c0a632b3673df460d26477c37

diff --git a/resources/src/mediawiki.special/mediawiki.special.userlogin.common.js b/resources/src/mediawiki.special/mediawiki.special.userlogin.common.js
index 247f814..f5289de 100644 (file)
--- a/resources/src/mediawiki.special/mediawiki.special.userlogin.common.js
+++ b/resources/src/mediawiki.special/mediawiki.special.userlogin.common.js
@@ -20,7 +20,7 @@
                if ( !$submit.length ) {
                        return;
                }
-               tabIndex = $submit.prop( 'tabindex' ) - 1;
+               tabIndex = $submit.prop( 'tabIndex' ) - 1;
                $captchaStuff = $content.find( '.captcha' );
 
                if ( $captchaStuff.length ) {