We have done that in the past with no issue what so ever in our
project (which is fairly large with 6 GWT modules). That meta tag only
forces IE to use version 8 rendering engine which GWT 2.1 supports.
Our project also uses GXT which had no issues as well.
But we did notice better performance and
One more thing to worry about is cross browser compatibility with JSF.
At my work we have two large projects, one in GWT and the other in
JSF. With the JSF project we are forcing ie9+ to use 1e8 compatibility
mode as it is very complex to upgrade the JSF code we have to the new
JSF frameworks. With
