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Opening of website www.notenbuch.de doesn't work with user agent Android, it is starting a download (*.part file)!

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When opening the website www.notenbuch.de with user agent Android Firefox Mobile does not show the website, it starts a download (part-file). It only works with user agent Desktop!

When opening the website www.notenbuch.de with user agent Android Firefox Mobile does not show the website, it starts a download (part-file). It only works with user agent Desktop!

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This means their site doesn't recognize Firefox for Android as a mobile browser. Sebbal, feel free to contact the administrator of Notenbuch and let them know that Firefox for Android is a mobile Android browser.

Our user-agent is: Mozilla/5.0 (Android; Mobile; rv:15.0) Gecko/15.0 Firefox/15.0

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They are serving the content as "application/vnd.wap.xhtml+xml". This is not correct, they are serving a web page not a WAP page.