Is Angular Translate susceptible to race conditions when using static files for multi-language support?

Currently utilizing angular translate with the static files loader for implementing multiple languages in my project. However, I've encountered a problem where the loading of language files sometimes takes longer than loading the actual view itself, leading to a partially translated UI. This results in some parts of the screen remaining untranslated while others are.

I have tried various solutions without success:

  • Enabling forceAsyncRefresh(true) during configuration of $translateProvider
  • Implementing a $rootScope watch in the login controller and refreshing the translation on translateLoadedSuccess event
  • Updating to the latest version of angular translate

The majority of translations are done in the view like this: {{ ::'My Translation Key' | translate }}

What am I missing in resolving this issue? Should I manually load the language files and set them during early load times? If so, how should I configure the setup?

My environment includes Angular 1.5.0 and Angular Translate 2.11.1.

Thanks in advance!

javascriptangularjsangular-translate

Answer №1

It turned out to be a race condition issue where the loading time of the language file was sometimes longer than what angular-translate required for static file load.

I explored two options - manually loading and setting up the language file or breaking it into smaller separate files. To ensure long-term stability, I chose to manually load and set up the language file. The process was simple:

1) Load the language file(s) at the top of the index.html file.

2) Assign a variable to the language file(s) - e.g. var enUS = { 'LOGIN': 'Login', 'USER': 'User' }

3) Manually configure the language in app.config:

app.config(['$translateProvider', function($translateProvider){
    $translateProvider.translations('en_US', enUS); // using the assigned variable from step 2
    $translateProvider.preferredLanguage('en_US');
    $translateProvider.useSanitizeValueStrategy('sanitize');
}]);

This approach resolved all issues on all clients moving forward.

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