In My website when i activate https,all url is coming from http instead of https.
I have tried to debug the same and found out that the url generated by
$designPackage->getSkinUrl($name, array());
in app/code/core/Mage/Page/Block/Html/Head.php
I am unable to find what is the issue when we try host website on https.
Amit's answer is correct. However there is an interesting quirk about Mage::getBaseUrl which is that you can force it to give an HTTPS link always:
In your code you're doing:
$designPackage->getSkinUrl($name, array());
However if you add the _secure parameter as true you can force an HTTPS link:
$designPackage->getSkinUrl($name, array('_secure'=>true));
Note that this will only output the base url for the HTTPS url set in System > Configuration > Web as Amit has pointed out.
As you have active https ,then You need to change some setting at backed.
Goto admin>system>Configuration> General>Web> Change all Secure urls(media,skin etc ) and Unsecure Url (media,skin etc ) To https from http.
If backend is not opened then go to your Magento DB select core_config_data table change all where
select * from core_config_data where path like '%base%url%';
from http to https
