Uploading documents to google docs from Salesforce - Security Error Accessing URL

[darvz03]

Hello, I am uploading a file from flex to Google docs. Everything is working in the local file however, when we upload the SWF file as S-controls in Salesforce (sandbox), an error appears upon connecting to Google. Please see error below:

Error:[FaultEvent fault=[RPC Fault faultString="Security error accessing url" faultCode="Channel.Security.Error" faultDetail="Destination: DefaultHTTPS"] messageId="1F812836-1318-B845-AC01-F51AB1D11518" type="fault" bubbles=false cancelable=true eventPhase=2]


We tried the following solutions below but nothing seems to work:
FLEX:
-Add the crossdomain.xml in the bin-debug folder: below is the content of the cross domain policy.
<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
<allow-access-from domain="*" secure="false" />
<allow-http-request-headers-from domain="*" headers="*" secure="false" />
</cross-domain-policy>
-Used flash.system.security.allowinsecuredomain/allowdomain(“*”) in the initialization.
-Also tried in the connection.protocol set to http
Salesforce:
-Disabled the protocol security in the remote site settings
oSetup -> Administration Setup -> Security Controls -> Remote Site Settings
§URL: Google


There’s no problem in connection to Salesforce but upon initialization of the uploading page the security error will appear specifically in the