Disabling same-origin policy in Safari

For development purposes, I need to disable the same-origin policy in Safari (on Windows) on my machine.

In Chrome, this can be done by launching with the flag --disable-web-security. Is there an equivalent flag or hidden setting in Safari?

If you want to disable the same-origin policy on Safari (I have 9.1.1), then you only need to enable the developer menu, and select "Disable Cross-Origin Restrictions" from the develop menu.

Later versions of Safari allow you to Disable Cross-Origin Restrictions. Just enable the developer menu from Preferences >> Advanced, and select "Disable Cross-Origin Restrictions" from the develop menu.

If you want local only, then you only need to enable the developer menu, and select "Disable local file restrictions" from the develop menu.

goto,

Safari -> Preferences -> Advanced

then at the bottom tick Show Develop Menu in menu bar

then in the Develop Menu tick Disable Cross-Origin Restrictions