https://gwt-code-reviews.appspot.com/1830803/diff/2003/user/src/com/google/gwt/xhr/client/XMLHttpRequest.java File user/src/com/google/gwt/xhr/client/XMLHttpRequest.java (right):
https://gwt-code-reviews.appspot.com/1830803/diff/2003/user/src/com/google/gwt/xhr/client/XMLHttpRequest.java#newcode150 user/src/com/google/gwt/xhr/client/XMLHttpRequest.java:150: if (xhr != null) { Note: it changes slightly the behavior compared to the previous version. Previously, xhr.responseType wouldn't be set for ResponseType.Default (the empty string). There are little to no reasons to pass Default here though, as its the default behavior of the zero-arg create() factory method (which used to use Default, so the behavior is totally untouched there). https://gwt-code-reviews.appspot.com/1830803/ -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
