Bing Maps Silverlight Control in Office 365

Recently, I was working on Geocoding with the Bing Maps Silverlight Control for a SharePoint 2010 Sandbox application. Everything was going awesome on my on-premise SharePoint 2010 environment but when I uploaded the application in Office 365, every time the application would load I would get a pop-up in IE asking whether to "Display Mixed Content?"

I googled for a solution and manged to learn that since the Office 365 environment was HTTPS and the Bing Maps GeoCoding web service was HTTP, I was being presented with this dialog box asking permission to display both HTTP and HTTPS content. This was also the reason why I was not getting the same pop-up on my on-premise SharePoint 2010 environment as it was also HTTP.

So the solution to this problem I thought was to find an HTTPS version of the Bing Maps GeoCoding web service so I made the following changes in my ServiceReferences.ClientConfig file:

1)Changed the URL of the web service to HTTPS

2)Changed the security mode of the basicHttpBinding from 'none' to 'Transport'

And voila! The annoying pop-up disappeared!

My final Service ServiceReferences.ClientConfig file looked like this:

<configuration>

    <system.serviceModel>

        <bindings>

            <basicHttpBinding>

                <binding name="BasicHttpBinding_IGeocodeService" maxBufferSize="2147483647"

                    maxReceivedMessageSize="2147483647">

                    <security mode="Transport" />

                binding>

            basicHttpBinding>

            <customBinding>

                <binding name="CustomBinding_IGeocodeService">

                    <binaryMessageEncoding />

                    <httpTransport maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" />

                binding>

            customBinding>

        bindings>

        <client>

            <endpoint address="https://dev.virtualearth.net/webservices/v1/geocodeservice/GeocodeService.svc"

                binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IGeocodeService"

                contract="GeocodeService.IGeocodeService" name="BasicHttpBinding_IGeocodeService" />

            <endpoint address="http://dev.virtualearth.net/webservices/v1/geocodeservice/GeocodeService.svc/binaryHttp"

                binding="customBinding" bindingConfiguration="CustomBinding_IGeocodeService"

                contract="GeocodeService.IGeocodeService" name="CustomBinding_IGeocodeService" />

        client>

    system.serviceModel>

configuration>