I'd provide you a few troubleshooting steps to check if this is a web-browser issue, radar-9628. 

We can try navigating using an incognito window. This way, we'll know if it's your regular browser, which causes this unexpected behavior.

Follow the shortcut keys, depending on what browser you're using.

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Safari: Command + Shift + N
• Microsoft Edge: Ctrl + Shift + P

If it works fine, go back to your main browser and clear the cache. It helps to troubleshoot and increases the performance of your browser. Also, they can use other supported browsers to better isolate the possibility of a browser-related issue.  

Please let me know how this goes. I'm here to help you whenever you needed me. Have a good day!