Error while downloading content: http:%2F%2Fwww.yahoo.com%3B No route to host
It seems like your form data has been url-encoded and then "//" and "/" were not recognized as URL parts.
Try setting "enctype" to "text/xml".
Or even better - try submitting your XML request with HTTPXMLRequest JavaScript object.
Our use case is to publish url from which DMP will display.
You should use
<n1:dmpConfigure xmlns:n1="http://www.cisco.com/dms/xml/ns/dsm/dmpManagement">
<dmpGroupIdList><id>28</id></dmpGroupIdList>
<parameters><nvp><name>init.BROWSER_CMD</name><value>http://dmmxp.mskshow.cisco.com/expo/intro/Slide1.jpg</value></nvp>
</parameters>
</n1:dmpConfigure>
for DMP group to go to URL, or
"Go to application" call from our API.
What you almost achieved at your example, is for DMM to go to yahoo.com and try to download and save yahoo's frontpage as an asset for later use. This is not what you want to do with yahoo ;-)