Home/ Questions/Q 71323
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-10T19:52:11+00:00

Quite simple really: var req:URLRequest=new URLRequest(); req.url=http://somesite.com; var header:URLRequestHeader=new URLRequestHeader(my-bespoke-header,1); req.requestHeaders.push(header); req.method=URLRequestMethod.GET; stream.load(req); Yet,

  • 0

Quite simple really:

var req:URLRequest=new URLRequest(); req.url='http://somesite.com'; var header:URLRequestHeader=new URLRequestHeader('my-bespoke-header','1'); req.requestHeaders.push(header); req.method=URLRequestMethod.GET; stream.load(req);

Yet, if I inspect the traffic with WireShark, the my-bespoke-header is not being sent. If I change to URLRequestMethod.POST and append some data to req.data, then the header is sent, but the receiving application requires a GET not a POST.

The documentation mentions a blacklist of headers that will not get sent. my-bespoke-header is not one of these. It’s possibly worth mentioning that the originating request is from a different port on the same domain. Nothing is reported in the policyfile log, so it seems unlikely, but is this something that can be remedied by force loading a crossdomain.xml with a allow-http-request-headers-from despite the fact that this is not a crossdomain issue? Or is it simply an undocumented feature of the Flash Player that it can only send custom headers with a POST request?

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. From what I can gather, it seems like your assumption about the lack of custom headers support for HTTP GET is indeed an undocumented feature (or a bug?) in the standard libraries.

    In any case, you might want to see if as3httpclient would fit your purposes and let you work around this issue. Here’s a relevant snippet from a post in the blog of the developer of this library:

    ‘I was not able to set the header of a HTTP/GET request. Macromedia Flash Player allows you set the header only for POST requests. I discussed this issues with Ted Patrick and he told me how I can us Socket to achieve the desired and he was very kind to give a me code-snippet, which got me started.’

    • 0