Ez az az eset, amikor az Opera próbálja magát tartani a szabványokhoz (jelen esetben a HTTP-hez), míg a weboldalak készítõit ez távolról sem érdekli. Nem lehet minden hülyeség és lustaság mellé közlekedési rendõrt állítani, ráadásul még veszélyes is lehet :(
cikk - "If the web server or application reports an incorrect MIME type for content, a web browser has no way, according to the HTTP specification, of knowing that the author actually intended the content to be processed and displayed in a way different from that implied by the reported MIME type.
Some other web browsers, such as Microsoft® Internet Explorer, try to allow for misconfigured web servers and applications by guessing what the correct MIME type should be. This has sheltered many web administrators from their own errors, since Internet Explorer will continue to process content as expected even though the web server is misconfigured, e.g. displays an image which is reported to be plain text.
Serving content using the correct MIME type can also be important for security reasons; it's possible for malicious content to affect the user's computer by pretending to be a safe type of document when it is in fact not."