Testing National Characters in Emacs, IE and Firefox

Using GNU Emacs 22.0.50.1 (i386-mingw-nt5.0.2195) of 2005-09-28

The header in this file contains <xml version="1.0" encoding="utf-8"?>

Character and context Internet Explorer Firefox
This is swedish ä entered in a new utf-8 file. Wrong Correct
This is swedish ä entered after opening the file again. Wrong Correct
This is the swedish character ä entered in a new iso-8859-1 file.

Compare this with using ISO-8859-1

Testing Emacs display

If <xml version="1.0" encoding="utf-8"?> is changed to use 8859-1 Emacs still displays the entered characters as they were correct.

Conclusion

Emacs and Firefox seems to handle this correctly. However due to bugs in Internet Explorer only ISO-8859-1 currently can handle both browsers.