@Override
public ContainerRequest filter(ContainerRequest request) {
String callback = null;
try {
callback = httpServletRequest.getParameter("callback");
} catch (IllegalStateException e) {
}
if (callback == null) {
try {
callback = request.getQueryParameters().getFirst("callback");
} catch (IllegalStateException e) {
}
}
if (isNotBlank(callback)) {
request.getRequestHeaders().putSingle("Accept", "application/javascript");
}
return request;
}
