diff --git a/server/hra/web/__init__.py b/server/hra/web/__init__.py
index 7ee6154..f803179 100644
--- a/server/hra/web/__init__.py
+++ b/server/hra/web/__init__.py
@@ -19,6 +19,8 @@ import hra.config as config
 import hra.web.html as html
 import hra.db as db
 
+import json
+
 
 import logging
 logging.basicConfig()
@@ -89,7 +91,21 @@ def init_request():
 app.before_request(init_request)
 
 
-
+@app.errorhandler(werkzeug.exceptions.HTTPException)
+def handle_exception(e):
+    path = request.path
+    if path.startswith('/api/'):
+        response = e.get_response()
+        response.data = json.dumps({
+            "status": "error",
+            "description": e.description,
+            "http-code": e.code,
+            "http-name": e.name,
+        })
+        response.content_type = "application/json"
+        return response
+    else:
+        return e
 
 import hra.web.pages as pages
 import hra.web.api
diff --git a/server/hra/web/api.py b/server/hra/web/api.py
index 6411f3c..d8cab77 100644
--- a/server/hra/web/api.py
+++ b/server/hra/web/api.py
@@ -9,6 +9,17 @@ from hra.web import app, NeedLoginError
 import hra.web.jinja_mac as jinja_mac
 import hra.lib as lib
 
+def json_endpoint(f):
+    def l(*arg, **kvarg):
+        x = f(*arg, **kvarg)
+        response = e.get_response()
+        response.content_type = "application/json"
+        response.data = json.dumps(x)
+        return response
+    l.__name__ = f.__name__
+    return l
+
+
 def args_get(name, type, optional=False, default=None):
     v = request.args.get(name)
     if v is None:
@@ -33,6 +44,7 @@ def get_context():
 
 
 @app.route("/api/state", methods=['GET'])
+@json_endpoint
 def api_state():
     team = get_context()
     game = team.game
@@ -54,15 +66,16 @@ def api_state():
             "status": "too_early",
             "wait": time_to_end + 1.0 if time_to_end is not None else 3.0,
         })
-    return json.dumps({
+    return {
         "status": "ok",
         "round": state.round,
         "team_id": team_id,
         "time_to_response": time_to_end,
         "state": game.get_logic().personalize_state(state.get_state(), team_id, state.round),
-    })
+    }
 
 @app.route("/api/action", methods=['POST'])
+@json_endpoint
 def api_action():
     def to_late():
         return json.dumps({
@@ -82,10 +95,10 @@ def api_action():
     try:
         warnings = game.get_logic().validate_move(state.get_state(), team_id, j, round_id)
     except Exception as e:
-        return json.dumps({
+        return {
             "status": "error",
             "description": f"{type(e).__name__}: {e}"
-        })
+        }
 
     db.get_session().expire_all()
     game = game.lock()
@@ -104,13 +117,14 @@ def api_action():
     db.get_session().commit()
 
     if warnings is not None:
-        return json.dumps(warnings)
-    return json.dumps({
+        return warnings
+    return {
         "status": "ok",
-    })
+    }
 
 
 @app.route("/api/step", methods=['POST'])
+@json_endpoint
 def api_step():
     team = get_context()
     game = team.game
@@ -119,6 +133,6 @@ def api_step():
 
     lib.game_step(game.game_id)
 
-    return json.dumps({
+    return {
         "status": "ok",
-    })
+    }
diff --git a/server/hra/web/pages.py b/server/hra/web/pages.py
index df56787..0129239 100644
--- a/server/hra/web/pages.py
+++ b/server/hra/web/pages.py
@@ -326,9 +326,9 @@ def web_org_games():
     b.h2("Hry")
     with b.p().table(_class="data full"):
         with b.thead():
-            b.line().th()("Id: Jméno")
-            b.line().th()("Kolo")
-            b.line().th()("Akce")
+            b.line().th("Id: Jméno")
+            b.line().th("Kolo")
+            b.line().th("Akce")
         for g in games:
             with b.tr():
                 b.line().td()(g.print())