Could we turn on word wrap Safari Web Inspector?
Word wrap works a little differently, but actually more accurate, in the latest versions of Safari, depending on the mode you're displaying.
For instance, in the "Elements" tab, it will wrap as desired:
But, like in your screenshot, the "Resources" tab for instance, it will display as the rendering engine intended, unwrapped:
Click on the settings cog-wheel to the far right of the tabs and check the box that reads "Wrap lines to editor width". Resources will now be wrapped.