diff --git a/mamweb/routers.py b/mamweb/routers.py
index f2a172cb..5a75d39d 100644
--- a/mamweb/routers.py
+++ b/mamweb/routers.py
@@ -7,4 +7,5 @@ router.register(r'ulohavzoraknode', vs.UlohaVzorakNodeViewSet,basename='ulohavzo
 router.register(r'text', vs.TextViewSet)
 router.register(r'textnode', vs.TextNodeViewSet)
 router.register(r'castnode', vs.CastNodeViewSet)
+router.register(r'problem', vs.ProblemViewSet, basename='problem')
 
diff --git a/seminar/migrations/0090_auto_20201110_1958.py b/seminar/migrations/0090_auto_20201110_1958.py
new file mode 100644
index 00000000..97949f58
--- /dev/null
+++ b/seminar/migrations/0090_auto_20201110_1958.py
@@ -0,0 +1,19 @@
+# Generated by Django 2.2.12 on 2020-11-10 18:58
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('seminar', '0089_cislo_datum_preddeadline'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='textnode',
+            name='text',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='seminar.Text', verbose_name='text'),
+        ),
+    ]
diff --git a/seminar/models.py b/seminar/models.py
index cf8cd6a9..db9f67f9 100644
--- a/seminar/models.py
+++ b/seminar/models.py
@@ -1475,7 +1475,7 @@ class TextNode(TreeNode):
 		verbose_name = 'Text (Node)'
 		verbose_name_plural = 'Text (Node)'
 	text = models.ForeignKey(Text,
-		on_delete=models.PROTECT,
+		on_delete=models.CASCADE,
 		verbose_name = 'text')
 	
 	def aktualizuj_nazev(self):
diff --git a/seminar/views/views_rest.py b/seminar/views/views_rest.py
index aa3fca55..739c57c9 100644
--- a/seminar/views/views_rest.py
+++ b/seminar/views/views_rest.py
@@ -11,7 +11,10 @@ class TextSerializer(serializers.ModelSerializer):
 		model = m.Text
 		fields = '__all__'
 
-
+class ProblemSerializer(serializers.ModelSerializer):
+	class Meta:
+		model = m.Problem
+		fields = '__all__'
 
 class UlohaVzorakNodeSerializer(serializers.ModelSerializer):
 	class Meta:
diff --git a/seminar/viewsets.py b/seminar/viewsets.py
index 8c83c067..67b13b3d 100644
--- a/seminar/viewsets.py
+++ b/seminar/viewsets.py
@@ -1,4 +1,8 @@
 from rest_framework import viewsets,filters
+from rest_framework import status
+from rest_framework.response import Response
+from django.core.exceptions import PermissionDenied
+
 from . import models as m
 from . import views
 
@@ -66,6 +70,14 @@ class CastNodeViewSet(ReadWriteSerializerMixin,viewsets.ModelViewSet):
 	write_serializer_class = views.CastNodeSerializer
 	create_serializer_class = views.CastNodeCreateSerializer
 
+	def destroy(self, request, *args, **kwargs):
+		obj = self.get_object()
+		print(obj)
+		if obj.first_child is None:
+			return super().destroy(request,*args,**kwargs)
+		raise PermissionDenied('Nelze smazat CastNode, který má děti!')
+
+
 class UlohaVzorakNodeViewSet(viewsets.ModelViewSet):
 	serializer_class = views.UlohaVzorakNodeSerializer
 
@@ -75,3 +87,10 @@ class UlohaVzorakNodeViewSet(viewsets.ModelViewSet):
 		if nazev is not None:
 			queryset = queryset.filter(nazev__contains=nazev)
 		return queryset
+
+class ProblemViewSet(viewsets.ModelViewSet):
+	serializer_class = views.ProblemSerializer
+
+	def get_queryset(self):
+		queryset = m.Problem.objects.all()
+		return queryset
diff --git a/vue_frontend/src/components/CastNode.vue b/vue_frontend/src/components/CastNode.vue
index 146bf5de..35390136 100644
--- a/vue_frontend/src/components/CastNode.vue
+++ b/vue_frontend/src/components/CastNode.vue
@@ -7,7 +7,9 @@
 			<button v-on:click="currentText = originalText;editorShow=!editorShow;">Zahodit úpravy</button>
 		</div>
 		<div v-else>
-		<h4>{{ currentText }} </h4> <button v-if="editorMode" v-on:click="editorShow=!editorShow">Upravit</button>
+		<h4>{{ currentText }} </h4>
+		<button v-if="editorMode" v-on:click="editorShow = !editorShow">Upravit</button>
+		<button v-if="editorMode" v-on:click="deleteCast" class="delete">Smazat</button>
 		</div>
 	</div>
 </template>
@@ -25,6 +27,7 @@ export default {
 	props: {
 		item: Object,
 		editorShow: Boolean,
+		editorMode: Boolean,
 		create: Boolean,
 		where: String,
 		refnode: Object
@@ -76,11 +79,27 @@ export default {
 			}
 
 			this.editorShow = false;
+		},
+		deleteCast: function() {
+			console.log("Deleting cast");
+			axios.delete('/api/castnode/'+this.item.node.id+'/'
+			).then( () => {
+				this.loading = false;
+				this.$root.$emit('updateData',"castNode delete update");
+			}).catch(e => {
+				this.errors.push(e);
+			});
 		}
-		}
+	}
 }
 </script>
 
 <!-- Add "scoped" attribute to limit CSS to this component only -->
 <style scoped>
+.changed {
+	background-color: yellow;
+}
+.delete {
+	background-color:  #ff6666;
+}
 </style>
diff --git a/vue_frontend/src/components/TextNode.vue b/vue_frontend/src/components/TextNode.vue
index aaa02fdb..b565d229 100644
--- a/vue_frontend/src/components/TextNode.vue
+++ b/vue_frontend/src/components/TextNode.vue
@@ -23,7 +23,8 @@
 
 		<template v-else v-bind:class="changedObject">
 			<p v-html="currentText"></p>
-			<button v-if="editorMode" v-on:click="editorShow=!editorShow">Upravit</button>
+			<button v-if="editorMode" v-on:click="editorShow = !editorShow">Upravit</button>
+			<button v-if="editorMode" v-on:click="deleteText" class="delete">Smazat</button>
 		</template>
 	</div>
 </template>
@@ -162,6 +163,16 @@ export default {
 			}
 			this.editorShow = false;
 		},
+		deleteText: function() {
+			console.log("Deleting text");
+			axios.delete('/api/textnode/'+this.item.node.id+'/'
+			).then( () => {
+				this.loading = false;
+				this.$root.$emit('updateData',"textNode delete update");
+			}).catch(e => {
+				this.errors.push(e);
+			});
+		},
 	}
 }
 </script>
@@ -169,6 +180,9 @@ export default {
 <!-- Add "scoped" attribute to limit CSS to this component only -->
 <style scoped>
 .changed {
-	background-color: 'yellow';
+	background-color: yellow;
+}
+.delete {
+	background-color:  #ff6666;
 }
 </style>
diff --git a/vue_frontend/src/components/TreeNodeRoot.vue b/vue_frontend/src/components/TreeNodeRoot.vue
index 20cf47ac..674d0fda 100644
--- a/vue_frontend/src/components/TreeNodeRoot.vue
+++ b/vue_frontend/src/components/TreeNodeRoot.vue
@@ -3,6 +3,7 @@
 		<div id="loading" v-if="loading">
 		Loading...
 		</div>
+		<div v-else>
 		<!--pre>
 		{{item}}
 		</pre-->
@@ -11,6 +12,7 @@
 		<button v-show="debugMode" v-on:click="debugMode = false">Vypnout ladicí mód</button>
 		<button v-show="!debugMode" v-on:click="debugMode = true">Zapnout ladicí mód</button>
 		<TreeNode :item="item" :editorMode="editorMode" :debugMode="debugMode"/>
+		</div>
 	</div>
 </template>
 
diff --git a/vue_frontend/vue.config.js b/vue_frontend/vue.config.js
index 8d61b6ce..e4fc61ce 100644
--- a/vue_frontend/vue.config.js
+++ b/vue_frontend/vue.config.js
@@ -15,7 +15,7 @@ const pages = {
 module.exports = {
     pages: pages,
     filenameHashing: false,
-    productionSourceMap: false,
+    productionSourceMap: true,
     publicPath: process.env.NODE_ENV === 'production'
         ? '/static/seminar/vue/'
         : 'http://localhost:8080/',
@@ -23,6 +23,7 @@ module.exports = {
 
     chainWebpack: config => {
 
+	config.optimization.minimize(false)
         config.optimization
             .splitChunks({
                 cacheGroups: {
@@ -33,7 +34,7 @@ module.exports = {
                         priority: 1
                     },
                 },
-            });
+            }).minimize(false);
 
         Object.keys(pages).forEach(page => {
             config.plugins.delete(`html-${page}`);