toolbar is not inserted because 304 is not "ok?"

[ghazel]

When I click the bookmarklet and type my password, the toolbar does not appear. Hard-refreshing the page makes the toolbar appear.

Digging in to the source, I see that @response.ok? returns false, because the status code is 304 (Not Modified) instead of 200. One way around this I used was to strip "HTTP_IF_NONE_MATCH" from the env before passing on the request, so the etag would not match.

[ghazel]

#31