Open any SVG page as per URL view source either via keyboard <opt>-<cmd>-U or menu neither work this is a nuisance when debugging SVG code... apparently Safari 3.0.2 beta does not have this bug...
Out in #webkit, the reporter was saying that he was using Safari 2.0.4 (419.3) with Nightly r23922. I had no problem opening Source View using Safari 3.0.2 for Mac with build r23941. Obviously a grayed-out menu item leans toward an Apple/Safari issue, not WebKit.
Actually, this works for me with Safari 2.0.4 and nightlies r23841 or r23922.
Works for me.
apologies this was resolved some time ago iirc