Pass production configuration to build
Pass production configuration to build

Could be why debug is running as it isn't using that. I thought
it did by default, but I guess this may have changed in 14.1.0

Relates to #195

GoogleCloudPlatform/woolaroo-language-learning-app,GoogleCloudPlatform/woolaroo-language-learning-app,GoogleCloudPlatform/woolaroo-language-learning-app,GoogleCloudPlatform/woolaroo-language-learning-app,GoogleCloudPlatform/woolaroo-language-learning-app