Connectivity: wifi with data roaming enabled SIM used: Movistar SIM Gaia/device: hamachi/1.4(30.0; 2014-08-16;21bec644)eng build steps to reproduce: 1. Set language on your firefoxOS device to es 2. Launch marketplace-dev packaged app 3. Change language on phone to en-US 4. Repeat step #2 expected behavior: Packaged app loads fine irrespective of the lang on the device. actual behavior: Packaged (dev, stage and feed-dev) apps load fine if lang is set to en-US but fail to load if lang is set to es on the device 08-18 14:57:28.379 E/GeckoConsole( 657): Content JS LOG at app://packaged.marketplace-dev.allizom.org/media/js/include.js:6 in anonymous: Mozilla(R) FP-MKT (R) 1.0 08-18 14:57:28.379 E/GeckoConsole( 657): Content JS LOG at app://packaged.marketplace-dev.allizom.org/media/js/include.js:6 in anonymous: (C)Copyright Mozilla Corp 1998-2014 08-18 14:57:28.389 E/GeckoConsole( 657): Content JS LOG at app://packaged.marketplace-dev.allizom.org/media/js/include.js:6 in anonymous: 08-18 14:57:28.389 E/GeckoConsole( 657): Content JS LOG at app://packaged.marketplace-dev.allizom.org/media/js/include.js:6 in anonymous: 64K High Memory Area is available. 08-18 14:57:28.729 E/GeckoConsole( 657): [JavaScript Error: "TypeError: window.navigator.l10n is undefined" {file: "app://packaged.marketplace-dev.allizom.org/media/js/include.js" line: 5}] 08-18 14:57:28.749 E/GeckoConsole( 657): Content JS LOG at app://packaged.marketplace-dev.allizom.org/media/js/include.js:7 in u/<: [user] Saving settings to localStorage 08-18 14:57:28.759 E/GeckoConsole( 657): Content JS LOG at app://packaged.marketplace-dev.allizom.org/media/js/include.js:7 in u/<: [urls] Using settings.media_url: https://marketplace-dev.mozflare.net/media/ 08-18 14:57:28.759 E/GeckoConsole( 657): Content JS LOG at app://packaged.marketplace-dev.allizom.org/media/js/include.js:7 in u/<: [urls] Changed settings.cdn_url: https://marketplace-dev.mozflare.net

verified fixed.