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Sorry, I am unable to validate this document because its content type is text/plain, which is not currently supported by this service. The Content-Type field is sent by your web server (or web browser if you use the file upload interface) and depends on its configuration. Commonly, web servers will have a mapping of filename extensions (such as ".html") to MIME Content-Type values (such as text/html). ========================================= I checked my code and it was text/html and NOT text/plain. I uploaded another - online - file and it gave the same error. When I validated the same file using the URL, it worked fine... So, there is a problem with the upload files feature...
This is a known bug... with your browser. *** This bug has been marked as a duplicate of 838 ***