Why does GWT ignore browser locale?

Question

GWT gets locale from either the locale property or the locale query string. If neither is specified, it uses the \"default\" (ie en_US) locale.

Answer 1

This worked for me, I hope it also works for you.

My problem was that I have not declared any locale value in .gwt.xml module descriptor. In that case only the default locale is used. GWT does that way because any different supported locale means a new compilation iteration/permutation. Therefore only declared locales are used.

Here you are an example:

The first and second lines set the available/supported locales (English from US and Spanish without specific country in my example). The third line sets the default locale in case no one is detected (this default declaration must be set after the default value is declared in a extend-property line). The fourth line enables the locale detection by means of the HTTP-Headers Accept-Language sent by browser (probably is enabled by default and not needed to set at all). The final line sets the order in which the different detection mechanisms try to detect the locale:

1. As a parameter in the URL query
2. From cookies
3. As a meta value in the HTML page
4. From the HTTP header sent by browser