Microsoft Silverlight

[imleeds]

Hi All

By adding text/xml  to the whitelist along with 3dr and .xap then I now have a larger proportion of Silverlight content displaying but obviously it is not ideal that I would have to whitelist these media types for all our users. I installed the firefox add on as suggested which is a useful little tool (I already had the IE equivalent).

I still cannot get the content on this page to display through the proxy and I get a server error. I think (from looking at the headers in firefox) that it is the zip file that is the problem that it needs to download to launch

http://www.silverlight.net/showcase/

Michael is there no way of creating a media type of Silverlight in the same way there is one for flash?

Ian

[jscholte]

If you wish to add a media type for Silverlight you can do the following:

It may be necessary to add a media type catalog entry under Common > Media Type Catalog, see below for the information to add:

Add or modify Media Type: application/x-silverlight-app

File Extensions: xap

Magic bytes are necessary: checked

Magic bytes are ambiguous: unchecked

Offset: 0

Magic bytes: 504B0304

I worked with agperzan, and we also added a whitelist entry for the media type:

Type: String

String: application/x-silverlight-app

Entry type: Media Type

Apples: Any type

That worked!

Best,

~Jon

[alexott]

Jon, signature that you specified will also match to standard .zip archives (Siliverlight applications are really code packed into .zip archive).

In MWG7 we have special checker for zip-based files, that allows us to distinguish sliverlight from other types.

[jogvan]

Thanks Jon it works on MWG 7.1.0 

[nate.hall]

Jon, Can you add a screenshot for 7.3.2 where you add the catalog entry under Common > Media Type Catalog

I can't seem to find that.

[pbrickey]

Nate,

That doesn't exist in Web Gateway 7. For mwg 7 you typically just need to whitelist from progress pages.

[Rslaats]

It looks like I have the same problem but with the added difficulty of sliverlight not supporting proxy authentication. When in our organisation an older client (xp/win2003) opens the content, it switches to windows media player with a login prompt. But when a new Win 7 client opens the content it only wants to use Silverlight.

[agperzan]

hello all,

i am struggling with the same issue. we are running mcafee webgateway 6.9 and users are having issues with playing silverlight videos.

has anyone found a definitive fix for this issue?

[stifi]

Dear all

I run into the same issue regarding the media type "application/x-silverlight-app" which seems not to be available also in MWG 7.3.0.2. If I read through this thread I'm not fully clear about if I can define custom media types unter MWG7? The one says "works on mwg7.1, the other says that does not exists in mwg7". Whitelisting separate url is not such a fancy solution, so am I able to define a custom media type in MWG7 or not?

Thx, Stefan

[alexott]

Hi Stefan

In the catalog we have the type 'application/x-silverlight' - I think, that the name was changed to match the "official" mime type from Microsoft