`:hover:after { content: '\A bar'; }` crashes Safari

Foo

Using :hover:after { content: '\A bar'; } crashes Safari 1.3 (v312) and 2.0 (v412). When you use :hover:after { content: 'bar'; display: block; } nothing is wrong.

Safari 1.3 crash

Safari 2.0 crash

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:hover:after { content: '\A bar'; } crashes Safari

`:hover:after { content: '\A bar'; }` crashes Safari