FYI, I enabled the 'Develop' menu in Safari and chose 'Show Error Console' while trying to load Google Maps. Here is the output:
[Warning] Invalid CSS property declaration at: * (maps.google.com, line 1, x2)
[Error] Failed to load resource: The request timed out. (hpimgs6.png, line 0)
[Error] Failed to load resource: The request timed out. (back_gray.png, line 0)
[Error] Failed to load resource: The request timed out. (mapcontrols3d7.png, line 0)
[Error] Failed to load resource: The request timed out. (hpimgs28.png, line 0)
[Error] Failed to load resource: The request timed out. (rs=AItRSTNAW1Jv83Wk7blT-AcDcjVOos8TfQ, line 0)
[Error] Failed to load resource: The request timed out. (transparent.png, line 0)
[Error] Failed to load resource: The request timed out. (v1_53a1fa6a.png, line 0)
[Error] Failed to load resource: The request timed out. (maps-64-2.png, line 0)
[Error] Failed to load resource: The request timed out. ({main,mod_util,mod_rst}.js, line 0)
[Error] Failed to load resource: The request timed out. (lhp_large_1.png, line 0)
[Error] Failed to load resource: The request timed out. (rs=AItRSTNAW1Jv83Wk7blT-AcDcjVOos8TfQ, line 0)