AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?

Bugsense:
https://www.bugsense.com/dashboard/project/98c9e403/errors/822538046
https://www.bugsense.com/dashboard/project/98c9e403/errors/931208083

android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?
at android.app.ContextImpl.startActivity(ContextImpl.java:629)
at android.content.ContextWrapper.startActivity(ContextWrapper.java:258)
at android.webkit.CallbackProxy.uiOverrideUrlLoading(CallbackProxy.java:231)
at android.webkit.CallbackProxy.handleMessage(CallbackProxy.java:326)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:130)
at android.app.ActivityThread.main(ActivityThread.java:3695)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:842)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:600)
at dalvik.system.NativeStart.main(Native Method)

Somewhere (trace doesn't say where), I am calling mContext.startActivity() on a mContext (Context) that is not an Activity or Fragment.