I have a URI... http://positiveaction.org/newsite/productimages/senn610THUMB This is a jpeg image. Apache is sending it as Content-Type : image/jpeg and Safari recieves it as such. I have verified this with the Charles web debugging proxy. On a page that includes this image via <img src="http://positiveaction.org/newsite/productimages/senn610THUMB"> I hit refresh, and the web server responds with 304 Not Modified. This is as it should be. However, when this happens web inspector sends this warning message... Resource interpreted as image but transferred with MIME type text/html Thanks, Terry Riegel
Here are the headers I received with curl -D headers.log http://positiveaction.org/newsite/productimages/senn610THUMB HTTP/1.1 200 OK Date: Mon, 28 Feb 2011 17:41:56 GMT Server: Apache/2.2.9 (Fedora) Last-Modified: Tue, 15 Feb 2011 18:34:53 GMT ETag: "1548265-424-49c566b96ad40" Accept-Ranges: bytes Content-Length: 1060 Connection: close Content-Type: image/unknown So, it is not image/jpeg but image/unknown. On a refresh, the resource does receive the "text/html" mime type, which is presumably due to the Safari network stack, tested on Windows 7 (Chrome reports the same "image/unknown" mime type for this 304 Not Modified). This is not a Web Inspector issue per se, so I'm changing the title and component appropriately.
Got fixed as a side effect of the bug 48525 fix.