// Avoid MIME type sniffing if the response comes back as 304 Not Modified.
int statusCode = [r respondsToSelector:@selector(statusCode)] ? [(id)r statusCode] : 0;
if (statusCode != 304)
- [r adjustMIMETypeIfNecessary];
+ adjustMIMETypeIfNecessary([r _CFURLResponse]);
if ([m_handle->firstRequest().nsURLRequest() _propertyForKey:@"ForceHTMLMIMEType"])
[r _setMIMEType:@"text/html"];