Safari not loading pages, other browsers doing fine

Hi,

I have an issue many seem to have: Safari 7.0.5 (and now 7.0.6) hangs when loading web pages whereas other browsers (Chrome, Firefox) work just fine. I've ran my tests on WiFi with two different routers as well as through iPhone tethering.

Here are the steps I have taken so far but the problem persists:

- re-installed my MacBook Air completely with the latest image from the App Store
- Reset Safari
- Disabled extensions
- Unchecked "Warn when visiting fraudulent website"
- Unchecked "Stop plug-ins to save power"
- In the Develop menu, checked "Disable caches"
- In WiFi settings, disabled IPv6
- Changed DNS to OpenDNS
- Deleted all Safari plist, caches, favicons cache, etc.
- Turned off Safari in iCloud settings
- Fixed permissions, rebooted
- Disabled the prefetch setting from terminal
- Emptied all my logs, launched Safari and tried to open this url: https://pragprog.com/login . Here is the (anonymised) result:

24/08/14 21:21:35.340 com.apple.launchd[1]: (com.apple.WebKit.WebContent.561A6831-7FA6-4E02-9B5B-FD48490AD905[346]) Could not terminate job: 3: No such process

24/08/14 21:21:35.340 com.apple.launchd[1]: (com.apple.WebKit.WebContent.561A6831-7FA6-4E02-9B5B-FD48490AD905[346]) Using fallback option to terminate job...

24/08/14 21:21:35.340 com.apple.launchd[1]: (com.apple.WebKit.Networking.89C22912-D84A-4B32-8401-468739D3BCED[287]) Could not terminate job: 3: No such process

24/08/14 21:21:35.340 com.apple.launchd[1]: (com.apple.WebKit.Networking.89C22912-D84A-4B32-8401-468739D3BCED[287]) Using fallback option to terminate job...

24/08/14 21:21:35.346 com.apple.launchd[1]: (com.apple.WebKit.Networking.89C22912-D84A-4B32-8401-468739D3BCED[287]) Exited with code: 1

I also deleted all the passwords in my keychain, deleted all the bookmarks and emptied the reading list, just in case there was some corruption there. Still no success.

Any help with this issue is greatly appreciated, it's driving me nuts and currently have to use Chrome.

Also, it seems others have the same issue as I have but so far, couldn't find an answer: https://discussions.apple.com/thread/6501064?start=0&tstart=0

(and my original thread in Apple support forum, with even more console logs: https://discussions.apple.com/thread/6500707 )

 

That doesn't sound too good for my problem, then. I was kinda expecting Yosemite would make the issue go away. I have a dev version of Yosemite but on my Mini which never had the issue with Safari my MBA currently has.

 

First, there's the one in the OP, https://pragprog.com/login

There are many after that... http://www.arstechnica.com, https://bitbucket.org, http://www.wikipedia.org and lots of others. And some other work without issues.

The SSL certificates on non-working pages are all issued by different authorities (DigiCert, etc...) and the certs in my keychain are valid, not expired.