diff --git a/config/routes.rb b/config/routes.rb
index d16559d57..33e53ba00 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -40,7 +40,7 @@ ActionController::Routing::Routes.draw do |map|
   map.resources :queries, :except => [:show]
 
   # Misc issue routes. TODO: move into resources
-  map.auto_complete_issues '/issues/auto_complete', :controller => 'auto_completes', :action => 'issues'
+  map.auto_complete_issues '/issues/auto_complete', :controller => 'auto_completes', :action => 'issues', :conditions => { :method => :get }
   map.preview_issue '/issues/preview/:id', :controller => 'previews', :action => 'issue' # TODO: would look nicer as /issues/:id/preview
   map.issues_context_menu '/issues/context_menu', :controller => 'context_menus', :action => 'issues'
   map.issue_changes '/issues/changes', :controller => 'journals', :action => 'index'
diff --git a/public/javascripts/application.js b/public/javascripts/application.js
index aeade1b1c..5cd38e6d0 100644
--- a/public/javascripts/application.js
+++ b/public/javascripts/application.js
@@ -293,6 +293,7 @@ function observeParentIssueField(url) {
                          { minChars: 3,
                            frequency: 0.5,
                            paramName: 'q',
+                           method: 'get',
                            updateElement: function(value) {
                              document.getElementById('issue_parent_issue_id').value = value.id;
                            }});
@@ -305,6 +306,7 @@ function observeRelatedIssueField(url) {
                          { minChars: 3,
                            frequency: 0.5,
                            paramName: 'q',
+                           method: 'get',
                            updateElement: function(value) {
                              document.getElementById('relation_issue_to_id').value = value.id;
                            },