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From "Jess Holle (JIRA)" <>
Subject [jira] [Commented] (CB-12283) EVAL_BRIDGE does not support multipart PluginResults
Date Tue, 03 Jan 2017 23:34:58 GMT


Jess Holle commented on CB-12283:

Either Cordova supports multipart PluginResults or it doesn't.

If it does, then there should either be an existing test case or one should be created to
validate this functionality for all current/future supported bridge modes.

If not, then this should be clearly documented and an alternative provided in the documentation.

I don't have a standalone test case handy.  If a fix is provided I could, however, patch it
into our build and see if it resolves the issue.

The lack of code to handle this use case is readily apparent without any test case.

> EVAL_BRIDGE does not support multipart PluginResults
> ----------------------------------------------------
>                 Key: CB-12283
>                 URL:
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: Android
>    Affects Versions: 6.0.0
>            Reporter: Jess Holle
>            Assignee: Joe Bowser
>              Labels: regression
> When moving from Cordova 5.1.1 to 6.0.0 our multi-part PluginResult communication started
failing (without any other changes to the application).  This issue goes away if we force
use of ONLINE_EVENT rather than EVAL_BRDIGE mode.
> Further investigation shows that with EVAL_BRIDGE multi-part PluginResults result in
[""] being sent as the response data, e.g.:
> cordova.callbackFromNative('Vuforia296582484',true,1,[""],true);
> This is clearly wrong and a result of JsMessage.encodeAsJsMessage(StringBuilder) having
no case for MESSAGE_TYPE_MULTIPART (nor any appropriate delegate to ensure proper handling).
 Reviewing the 6.1.0 sources suggests this has still not been fixed there.
> Given the switch of the default bridge mode on Android to EVAL_BRIDGE, this is a very
serious regression and breakage of existing plugins.  This should either be fixed or the bridge
mode reverted to ONLINE_EVENT once again.

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