On a proxy server connection, Canvas/WebGL Test Movie workflow results in a "connection refused" error.

Steps to reproduce the issue


  1. Point your network connection to a proxy server (Start > Control Panel > Internet Options > Connections > LAN Settings).
  2. Launch Flash and create a Canvas/WebGL document.
  3. Draw something on stage and test the movie. Browser displays the "connection refused" error message.
  1. Open System Preferences.
  2. Click Network > Advanced.
  3. In to Proxies tab, check the Web Proxy (HTTP) and Secure Web Proxy (HTTPS) checkboxes, and enter the proxy server details.


  1. Go to Preferences > Advanced.
  2. On the Network tab, click Settings.
  3. Select Manual Proxy Configuration and enter the proxy details.


Make an exception for local addresses.


  1. Open Start > Control Panel > Internet Options.
  2. In the Connections tab, click LAN Settings and check 'Bypass proxy server for local addresses'.


  • In the Bypass Proxy Settings for these Hosts and Domains section under the Proxies tab, add
  1. Go to Preferences and click on the Advanced tab. 
  2. On the Network tab, click Settings.
  3. Under the 'No Proxy for' section, enter

Note: For HTML5 Canvas documents, turn off hosted libraries option in Flash publish settings.

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