[Qt-qml] UTF-8 vs. other encodings with XMLHttpRequest

[bea.lam at nokia.com]

On 20/08/2010, at 5:04 PM, ext ari.koivisto at nokia.com wrote:

> Hi,
> 
> I've run into problems in how qml handles character encodings with XMLHttpRequest.
> 
> The web service I'm using returns either a block of text with following response header "content-type: text/plain; charset=iso-8859-1" or a text/xml response with "<?xml version="1.0" encoding="ISO-8859-1" ?>" - depending on the service request.
> 
> I'm using XmlListModel for the XML response and it seems to be working ok with iso-8859-1, but using the responseText with XMLHttpRequest ends up with non-ascii letters in black diamond question marks.
> 
> Looking at the source 4.7.0 beta 2 (qdeclarativexmlhttprequest.cpp):
> ---clip---
> QString QDeclarativeXMLHttpRequest::responseBody() const
> {
>    QXmlStreamReader reader(m_responseEntityBody);
>    reader.readNext();
>    QTextCodec *codec = QTextCodec::codecForName(reader.documentEncoding().toString().toUtf8());
>    if (codec)
>        return codec->toUnicode(m_responseEntityBody);
> 
>    return QString::fromUtf8(m_responseEntityBody);
> }
> ---clip---
> It is trying to find the decoder with the response body and failing as the charset is set in the headers. Shouldn't the header charset be used here?
> 

Thanks, reported as http://bugreports.qt.nokia.com/browse/QTBUG-13117.