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# Error: $compile:ctxoverride
DOM Property Security Context Override

    Property context '{0}.{1}' already set to '{2}', cannot override to '{3}'.

## Description

This error occurs when the security context for a property is defined via addPropertySecurityContext() multiple times under different security contexts.

For example:

    $compileProvider.addPropertySecurityContext("my-element", "src", $sce.MEDIA_URL);
    $compileProvider.addPropertySecurityContext("my-element", "src", $sce.RESOURCE_URL);    //throws