IBM Worklight - "Failed to parse the payload from backend" - ibm-mobilefirst

Question

Must any URL of RSS resource end with ".xml" when used in Worklight?
For example: http://www.youku.com/user/rss/id/24645394
I tried to save the above as an XML file, then place it in my localhost. It works. However, the below code doesn't work... I get the following invocation result.
Do you you have solution about my case?
{
"errors": [
"Premature end of file.",
"Failed to parse the payload from backend (procedure: HttpRequest)"
],
"info": [
],
"isSuccessful": false,
"responseHeaders": {
"Accept-Ranges": "bytes",
"Age": "0",
"Cache-Control": "no-store, no-cache, must-revalidate",
"Connection": "close",
"Content-Length": "0",
"Content-Type": "text\/html; charset=utf-8",
"Date": "Mon, 07 Apr 2014 16:24:45 GMT",
"Server": "Varnish",
"X-Cache": "Miss from 1.w.b28"
},
"responseTime": 2452,
"statusCode": 404,
"statusReason": "Unknown virtual host",
"totalTime": 2465,
"warnings": [
]
}
News.xml
<?xml version="1.0" encoding="UTF-8"?>
<wl:adapter name="News"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:wl="http://www.worklight.com/integration"
xmlns:http="http://www.worklight.com/integration/http">
<displayName>News</displayName>
<description>News</description>
<connectivity>
<connectionPolicy xsi:type="http:HTTPConnectionPolicyType">
<protocol>http</protocol>
<domain>www.youku.com</domain>
<port>80</port>
</connectionPolicy>
<loadConstraints maxConcurrentConnectionsPerNode="2" />
</connectivity>
<procedure name="getStories" />
<procedure name="getStoriesFiltered" />
</wl:adapter>
News-impl.js
function getStories(interest) {
path = getPath(interest);
var input = {
method : 'get',
returnedContentType : 'xml',
path : path
};
return WL.Server.invokeHttp(input);
}
function getStoriesFiltered(interest) {
path = getPath(interest);
var input = {
method : 'get',
returnedContentType : 'xml',
path : path,
transformation : {
type : 'xslFile',
xslFile : 'filtered.xsl'
}
};
return WL.Server.invokeHttp(input);
}
function getPath(interest) {
if (interest == undefined || interest == '') {
interest = '/user/rss/id/24645394/';
}else {
interest = '/user/rss/id/'+interest;
}
return interest;
}
filtered.xsl
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:h="http://www.w3.org/1999/xhtml">
<xsl:output method="text"/>
<xsl:template match="/">
{
'Items': [
<xsl:for-each select="rss/channel/item">
{
'title': '<xsl:value-of select="title"/>',
'link': '<xsl:value-of select="link"/>'
},
</xsl:for-each>
]
}
</xsl:template>
</xsl:stylesheet>

Answer 1

add host header:
var input = {
method : 'get',
returnedContentType : 'xml',
path : path,
headers: {
"Host":"www.youku.com"
}
};