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Tagged: crossdomain

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There are 7 entries for the tag crossdomain

Hosting cross-domain Silverlight applications (XAP)

In the Silverlight world, there are two types of “cross-domain” things that may leave some banging their head against a wall for a while.  The first involves making network-based calls (WebClient, HttpWebRequest, etc) to services hosted on a domain other than the one that is the site of origin for the XAP.  This is solved by ensuring the service provider enables a clientaccesspolicy.xml file for their service.  More information here: Cross Domain Policy Files with Silverlight. NOTE: “site of origin” is a term you might see a lot with regard to Silverlight.  This refers to the URI domain of the Silverlight...

How about some LIVE Silverlight service debugging?

I’ve got a thought lately and curious if I’m thinking crazy.  You see, probably the most asked questions I get are around working with services within Silverlight.  Although I’ve got some helpful (at least I think they’re helpful) posts on the subject: Silverlight, 404 and some tool help Updates for Beta 2 Working with Syndicated Data Calling WCF/ASMX Services Calling REST Services Cross-domain policy files ...

Accessing Amazon S3 with Silverlight

I ran into an interesting situation last week…the desire to access some of my Amazon S3 services from within a Silverlight application. Amazon Simple Storage Solution (S3) is a pay service provided Amazon for object storage ‘in the cloud.’  Although there is no UI tool provided by Amazon to navigate your account in S3, a SOAP and REST API are available for developers to integrate S3 information into their applications or other uses.  You can view more information about Amazon S3 on their site. What is S3? Since S3 is a pretty flexible service, it can be used for many different things including...

Silverlight cross domain services and a helpful tool

I’ve been getting a few notes on issues relating to people trying Silverlight beta 2 and WCF or other services.  The most common issue I’m seeing reported is “my exception is showing a 404-not found error message, but the service is there and works!” Okay, there could be several things happening here, but let’s tackle the “make sure it is plugged in” type situations.  I don’t mean to make light of the error, because at first I, too, was banging my head against a wall.  Sometimes it helps to have a second set of eyes or a deeper understanding...

Important change to Sockets in Silverlight 2

An important note for those using Sockets in Silverlight 2.  In beta 1, Sockets were limited to site-of-origin (meaning you could only connect back to the same host that served up the Silverlight application).  This has changed in beta 2 to allow your Silverlight application to connect to any server exposing some Socket connections. One important note, however, is that a policy implementation has been added.  This policy implementation affects not only cross-domain Socket calls, but site-of-origin ones as well.  So if you are using Sockets, you must have a policy implementation in place. The policy implementation is done via a similar file...

Silverlight 2 Beta 2 updates for web services

We were all jumping for joy when Silverlight 2 beta 1 was released and the ability to connect to services was more readily/easily available to us.  For discoverable services that provided a WSDL we were quickly able to implement them using the Add Service Reference capability in Visual Studio 2008.  Beta 2 brings a few changes to the world of services that you should know about.  I’ll do my best to recap some of them here. Generating a WCF Service In beta 1 when we created a WCF service for use in Silverlight, we used the “WCF Service” template...

My Silverlight application cannot access my service!

I’ve started a dialog with a few of you about getting Silverlight and service integration working, specifically with ASP.NET web services (and even WCF ones).  A few have downloaded some of my samples, but others have started from scratch.  A few have reported getting some interesting errors, ASYNC_blahblah and NotFound errors specifically.  While this was boggling my mind (as I wasn’t getting them), a reader’s comments pointed me along the lines of something…he mentioned “maybe it is because my web service is ASP.NET 2.0 and not 3.5” – of which that shouldn’t be the case, so I went to test...


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