cc @mikewest @annevk @ericlaw1979

From https://html.spec.whatwg.org/multipage/system-state.html#normalize-protocol-handler-parameters:

'If the resulting URL record's scheme is not "https" or the resulting URL record's origin is not same origin with environment's origin, then throw a "SecurityError" DOMException.'

It seems this forbids localhost URLs like http://127.0.0.1 that are in a se

Hi,

When I use multiple iframe in my web page with pNotify and do submit or a button click in the page, I am getting error "Uncaught TypeError: Cannot read property 'opener' of undefined" in at PNotify.position (pnotify.js:641).

I am getting this error when I am changing a iframe src in a text box change event and do submit the page. This is happening only in Chrome browser.
Please help me

Relevant spec sections:

https://drafts.csswg.org/selectors-4/#the-dir-pseudo
https://html.spec.whatwg.org/multipage/semantics-other.html#selector-ltr

The interesting cases to test are from the definition of "directionality" in HTML:
https://html.spec.whatwg.org/multipage/dom.html#the-directionality

• element with dir="ltr" matches :dir(ltr)
• root element without dir attr

When you open page UI Elements -> Cards i see TABS are not showing content until you click on other and back on first, same for pills.

Possible fix : ( worked for me )

<script type="text/javascript"> $(document).ready(function(){ $('.nav-item').tab('show'); $('.nav-tabs li a:first').trigger('click'); }); </script>