diff --git a/config/config.exs b/config/config.exs
index 02bfa3191..9f125f79e 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -66,10 +66,11 @@ config :mime, :types, %{
 config :mobilizon, Mobilizon.Web.Upload,
   uploader: Mobilizon.Web.Upload.Uploader.Local,
   filters: [
-    Mobilizon.Web.Upload.Filter.Dedupe,
     Mobilizon.Web.Upload.Filter.AnalyzeMetadata,
     Mobilizon.Web.Upload.Filter.Resize,
-    Mobilizon.Web.Upload.Filter.Optimize
+    Mobilizon.Web.Upload.Filter.Optimize,
+    Mobilizon.Web.Upload.Filter.BlurHash,
+    Mobilizon.Web.Upload.Filter.Dedupe
   ],
   allow_list_mime_types: ["image/gif", "image/jpeg", "image/png", "image/webp"],
   link_name: true,
diff --git a/js/src/components/Event/EventBanner.vue b/js/src/components/Event/EventBanner.vue
index 1e82f0c38..f2d429ab2 100644
--- a/js/src/components/Event/EventBanner.vue
+++ b/js/src/components/Event/EventBanner.vue
@@ -5,6 +5,7 @@
 </template>
 <script lang="ts">
 import { IMedia } from "@/types/media.model";
+import { PropType } from "vue";
 import { Component, Prop, Vue } from "vue-property-decorator";
 import LazyImageWrapper from "../Image/LazyImageWrapper.vue";
 
@@ -14,7 +15,7 @@ import LazyImageWrapper from "../Image/LazyImageWrapper.vue";
   },
 })
 export default class EventBanner extends Vue {
-  @Prop({ required: true, default: null })
+  @Prop({ required: true, default: null, type: Object as PropType<IMedia> })
   picture!: IMedia | null;
 }
 </script>
diff --git a/js/src/components/Image/BlurhashImg.vue b/js/src/components/Image/BlurhashImg.vue
index 9181991a1..a4017a5fc 100644
--- a/js/src/components/Image/BlurhashImg.vue
+++ b/js/src/components/Image/BlurhashImg.vue
@@ -7,17 +7,21 @@ import { decode } from "blurhash";
 import { Component, Prop, Ref, Vue } from "vue-property-decorator";
 
 @Component
-export default class extends Vue {
+export default class BlurhashImg extends Vue {
   @Prop({ type: String, required: true }) hash!: string;
   @Prop({ type: Number, default: 1 }) aspectRatio!: string;
 
   @Ref("canvas") readonly canvas!: any;
 
   mounted(): void {
-    const pixels = decode(this.hash, 32, 32);
-    const imageData = new ImageData(pixels, 32, 32);
-    const context = this.canvas.getContext("2d");
-    context.putImageData(imageData, 0, 0);
+    try {
+      const pixels = decode(this.hash, 32, 32);
+      const imageData = new ImageData(pixels, 32, 32);
+      const context = this.canvas.getContext("2d");
+      context.putImageData(imageData, 0, 0);
+    } catch (e) {
+      console.error(e);
+    }
   }
 }
 </script>
diff --git a/js/src/components/Image/LazyImageWrapper.vue b/js/src/components/Image/LazyImageWrapper.vue
index af5b43493..1b3e1313a 100644
--- a/js/src/components/Image/LazyImageWrapper.vue
+++ b/js/src/components/Image/LazyImageWrapper.vue
@@ -9,6 +9,7 @@
 </template>
 <script lang="ts">
 import { IMedia } from "@/types/media.model";
+import { PropType } from "vue";
 import { Component, Prop, Vue } from "vue-property-decorator";
 import LazyImage from "../Image/LazyImage.vue";
 
@@ -31,7 +32,7 @@ const DEFAULT_PICTURE = {
   },
 })
 export default class LazyImageWrapper extends Vue {
-  @Prop({ required: true })
+  @Prop({ required: false, type: Object as PropType<IMedia | null> })
   picture!: IMedia | null;
 
   get pictureOrDefault(): Partial<IMedia> {
diff --git a/js/src/components/Map.vue b/js/src/components/Map.vue
index 0d52fd943..439129252 100644
--- a/js/src/components/Map.vue
+++ b/js/src/components/Map.vue
@@ -7,12 +7,18 @@
       :center="[lat, lon]"
       @click="clickMap"
       @update:zoom="updateZoom"
+      :options="{ zoomControl: false }"
     >
       <l-tile-layer
         :url="config.maps.tiles.endpoint"
         :attribution="attribution"
       >
       </l-tile-layer>
+      <l-control-zoom
+        position="topleft"
+        :zoomInTitle="$t('Zoom in')"
+        :zoomOutTitle="$t('Zoom out')"
+      ></l-control-zoom>
       <v-locatecontrol :options="{ icon: 'mdi mdi-map-marker' }" />
       <l-marker
         :lat-lng="[lat, lon]"
@@ -34,7 +40,14 @@
 import { Icon, LatLng, LeafletMouseEvent, LeafletEvent } from "leaflet";
 import "leaflet/dist/leaflet.css";
 import { Component, Prop, Vue } from "vue-property-decorator";
-import { LMap, LTileLayer, LMarker, LPopup, LIcon } from "vue2-leaflet";
+import {
+  LMap,
+  LTileLayer,
+  LMarker,
+  LPopup,
+  LIcon,
+  LControlZoom,
+} from "vue2-leaflet";
 import Vue2LeafletLocateControl from "@/components/Map/Vue2LeafletLocateControl.vue";
 import { CONFIG } from "../graphql/config";
 import { IConfig } from "../types/config.model";
@@ -46,6 +59,7 @@ import { IConfig } from "../types/config.model";
     LMarker,
     LPopup,
     LIcon,
+    LControlZoom,
     "v-locatecontrol": Vue2LeafletLocateControl,
   },
   apollo: {
diff --git a/js/src/components/Map/Vue2LeafletLocateControl.vue b/js/src/components/Map/Vue2LeafletLocateControl.vue
index c7afaad7e..753bf7c57 100644
--- a/js/src/components/Map/Vue2LeafletLocateControl.vue
+++ b/js/src/components/Map/Vue2LeafletLocateControl.vue
@@ -10,9 +10,9 @@
  * to try to trigger location manually (not done ATM)
  */
 
-import L, { DomEvent } from "leaflet";
+import { DomEvent } from "leaflet";
 import { findRealParent, propsBinder } from "vue2-leaflet";
-import "leaflet.locatecontrol";
+import Locatecontrol from "leaflet.locatecontrol";
 import { Component, Prop, Vue } from "vue-property-decorator";
 
 @Component({
@@ -37,12 +37,20 @@ export default class Vue2LeafletLocateControl extends Vue {
   parentContainer: any;
 
   mounted(): void {
-    this.mapObject = L.control.locate(this.options);
+    // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+    // @ts-ignore
+    this.mapObject = new Locatecontrol({
+      ...this.options,
+      strings: { title: this.$t("Show me where I am") as string },
+    });
     DomEvent.on(this.mapObject, this.$listeners as any);
     propsBinder(this, this.mapObject, this.$props);
     this.ready = true;
     this.parentContainer = findRealParent(this.$parent);
     this.mapObject.addTo(this.parentContainer.mapObject, !this.visible);
+    this.$nextTick(() => {
+      this.$emit("ready", this.mapObject);
+    });
   }
 
   public locate(): void {
diff --git a/js/src/i18n/en_US.json b/js/src/i18n/en_US.json
index 9f4586aab..faef2ada9 100644
--- a/js/src/i18n/en_US.json
+++ b/js/src/i18n/en_US.json
@@ -1125,5 +1125,8 @@
   "Booking": "Booking",
   "Filter by profile or group name": "Filter by profile or group name",
   "Filter by name": "Filter by name",
-  "Redirecting in progress…": "Redirecting in progress…"
+  "Redirecting in progress…": "Redirecting in progress…",
+  "Zoom in": "Zoom in",
+  "Zoom out": "Zoom out",
+  "Show me where I am": "Show me where I am"
 }
diff --git a/js/src/i18n/fr_FR.json b/js/src/i18n/fr_FR.json
index 0615a1480..e7f3473da 100644
--- a/js/src/i18n/fr_FR.json
+++ b/js/src/i18n/fr_FR.json
@@ -99,7 +99,7 @@
   "Are you sure you want to <b>delete</b> this event? This action cannot be undone. You may want to engage the discussion with the event creator or edit its event instead.": "Êtes-vous certain⋅e de vouloir <b>supprimer</b> cet événement ? Cette action n'est pas réversible. Vous voulez peut-être engager la discussion avec le créateur de l'événement ou bien modifier son événement à la place.",
   "Are you sure you want to <b>suspend</b> this group? All members - including remote ones - will be notified and removed from the group, and <b>all of the group data (events, posts, discussions, todos…) will be irretrievably destroyed</b>.": "Êtes-vous certain·e de vouloir <b>suspendre</b> ce groupe ? Tous les membres - y compris ceux·elles sur d'autres instances - seront notifié·e·s et supprimé·e·s du groupe, et <b>toutes les données associées au groupe (événements, billets, discussions, todos…) seront irrémédiablement détruites</b>.",
   "Are you sure you want to <b>suspend</b> this group? As this group originates from instance {instance}, this will only remove local members and delete the local data, as well as rejecting all the future data.": "Êtes-vous certain·e de vouloir <b>suspendre</b> ce groupe ? Comme ce groupe provient de l'instance {instance}, cela supprimera seulement les membres locaux et supprimera les données locales, et rejettera également toutes les données futures.",
-  "Are you sure you want to cancel the event creation? You'll lose all modifications.": "Étes-vous certain⋅e de vouloir annuler la création de l'événement ? Vous allez perdre toutes vos modifications.",
+  "Are you sure you want to cancel the event creation? You'll lose all modifications.": "Êtes-vous certain⋅e de vouloir annuler la création de l'événement ? Vous allez perdre toutes vos modifications.",
   "Are you sure you want to cancel the event edition? You'll lose all modifications.": "Êtes-vous certain⋅e de vouloir annuler la modification de l'événement ? Vous allez perdre toutes vos modifications.",
   "Are you sure you want to cancel your participation at event \"{title}\"?": "Êtes-vous certain⋅e de vouloir annuler votre participation à l'événement « {title} » ?",
   "Are you sure you want to delete this entire discussion?": "Êtes-vous certain⋅e de vouloir supprimer l'entièreté de cette discussion ?",
@@ -1216,5 +1216,8 @@
   "Booking": "Réservations",
   "Filter by profile or group name": "Filter par nom du profil ou du groupe",
   "Filter by name": "Filtrer par nom",
-  "Redirecting in progress…": "Redirection en cours…"
+  "Redirecting in progress…": "Redirection en cours…",
+  "Zoom in": "Zoomer",
+  "Zoom out": "Dézoomer",
+  "Show me where I am": "Afficher ma position"
 }
diff --git a/js/src/main.ts b/js/src/main.ts
index 2ace9af59..cae711f1a 100644
--- a/js/src/main.ts
+++ b/js/src/main.ts
@@ -1,5 +1,3 @@
-// The Vue build version to load with the `import` command
-// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
 import Vue from "vue";
 import Buefy from "buefy";
 import Component from "vue-class-component";
diff --git a/js/src/types/event.model.ts b/js/src/types/event.model.ts
index eb3c02469..c724e0aa3 100644
--- a/js/src/types/event.model.ts
+++ b/js/src/types/event.model.ts
@@ -203,41 +203,47 @@ export class EventModel implements IEvent {
   }
 
   toEditJSON(): IEventEditJSON {
-    return {
-      id: this.id,
-      title: this.title,
-      description: this.description,
-      beginsOn: this.beginsOn.toISOString(),
-      endsOn: this.endsOn ? this.endsOn.toISOString() : null,
-      status: this.status,
-      visibility: this.visibility,
-      joinOptions: this.joinOptions,
-      draft: this.draft,
-      tags: this.tags.map((t) => t.title),
-      onlineAddress: this.onlineAddress,
-      phoneAddress: this.phoneAddress,
-      physicalAddress: this.removeTypeName(this.physicalAddress),
-      options: this.removeTypeName(this.options),
-      metadata: this.metadata.map(({ key, value, type, title }) => ({
-        key,
-        value,
-        type,
-        title,
-      })),
-      attributedToId:
-        this.attributedTo && this.attributedTo.id ? this.attributedTo.id : null,
-      contacts: this.contacts.map(({ id }) => ({
-        id,
-      })),
-    };
-  }
-
-  private removeTypeName(entity: any): any {
-    if (entity?.__typename) {
-      // eslint-disable-next-line @typescript-eslint/no-unused-vars
-      const { __typename, ...purgedEntity } = entity;
-      return purgedEntity;
-    }
-    return entity;
+    return toEditJSON(this);
   }
 }
+
+function removeTypeName(entity: any): any {
+  if (entity?.__typename) {
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    const { __typename, ...purgedEntity } = entity;
+    return purgedEntity;
+  }
+  return entity;
+}
+
+export function toEditJSON(event: IEvent): IEventEditJSON {
+  return {
+    id: event.id,
+    title: event.title,
+    description: event.description,
+    beginsOn: event.beginsOn.toISOString(),
+    endsOn: event.endsOn ? event.endsOn.toISOString() : null,
+    status: event.status,
+    visibility: event.visibility,
+    joinOptions: event.joinOptions,
+    draft: event.draft,
+    tags: event.tags.map((t) => t.title),
+    onlineAddress: event.onlineAddress,
+    phoneAddress: event.phoneAddress,
+    physicalAddress: removeTypeName(event.physicalAddress),
+    options: removeTypeName(event.options),
+    metadata: event.metadata.map(({ key, value, type, title }) => ({
+      key,
+      value,
+      type,
+      title,
+    })),
+    attributedToId:
+      event.attributedTo && event.attributedTo.id
+        ? event.attributedTo.id
+        : null,
+    contacts: event.contacts.map(({ id }) => ({
+      id,
+    })),
+  };
+}
diff --git a/js/src/views/Event/Edit.vue b/js/src/views/Event/Edit.vue
index eaacac57b..8cb7fdffc 100644
--- a/js/src/views/Event/Edit.vue
+++ b/js/src/views/Event/Edit.vue
@@ -463,7 +463,7 @@ import FullAddressAutoComplete from "@/components/Event/FullAddressAutoComplete.
 import EventMetadataList from "@/components/Event/EventMetadataList.vue";
 import IdentityPickerWrapper from "@/views/Account/IdentityPickerWrapper.vue";
 import Subtitle from "@/components/Utils/Subtitle.vue";
-import { Route } from "vue-router";
+import { RawLocation, Route } from "vue-router";
 import { formatList } from "@/utils/i18n";
 import {
   ActorType,
@@ -481,7 +481,7 @@ import {
   EVENT_PERSON_PARTICIPATION,
   FETCH_EVENT,
 } from "../../graphql/event";
-import { EventModel, IEvent } from "../../types/event.model";
+import { EventModel, IEvent, toEditJSON } from "../../types/event.model";
 import {
   CURRENT_ACTOR_CLIENT,
   IDENTITIES,
@@ -586,6 +586,8 @@ export default class EditEvent extends Vue {
 
   event: IEvent = new EventModel();
 
+  unmodifiedEvent: IEvent = new EventModel();
+
   identities: IActor[] = [];
 
   person!: IPerson;
@@ -687,12 +689,13 @@ export default class EditEvent extends Vue {
     if (!(this.isUpdate || this.isDuplicate)) {
       this.initializeEvent();
     } else {
-      this.event = {
+      this.event = new EventModel({
         ...this.event,
         options: cloneDeep(this.event.options),
         description: this.event.description || "",
-      };
+      });
     }
+    this.unmodifiedEvent = cloneDeep(this.event);
   }
 
   createOrUpdateDraft(e: Event): void {
@@ -813,8 +816,8 @@ export default class EditEvent extends Vue {
   }
 
   get updateEventMessage(): string {
-    // if (this.unmodifiedEvent.draft && !this.event.draft)
-    //   return this.$i18n.t("The event has been updated and published") as string;
+    if (this.unmodifiedEvent.draft && !this.event.draft)
+      return this.$i18n.t("The event has been updated and published") as string;
     return (
       this.event.draft
         ? this.$i18n.t("The draft event has been updated")
@@ -910,7 +913,7 @@ export default class EditEvent extends Vue {
    * Build variables for Event GraphQL creation query
    */
   private async buildVariables() {
-    let res = new EventModel(this.event).toEditJSON();
+    let res = toEditJSON(new EventModel(this.event));
     const organizerActor = this.event.organizerActor?.id
       ? this.event.organizerActor
       : this.organizerActor;
@@ -984,10 +987,12 @@ export default class EditEvent extends Vue {
   /**
    * Confirm cancel
    */
-  confirmGoElsewhere(callback: () => any): void {
-    if (!this.isEventModified) {
-      callback();
-    }
+  confirmGoElsewhere(): Promise<boolean> {
+    // TODO: Make calculation of changes work again and bring this back
+    // If the event wasn't modified, no need to warn
+    // if (!this.isEventModified) {
+    //   return Promise.resolve(true);
+    // }
     const title: string = this.isUpdate
       ? (this.$t("Cancel edition") as string)
       : (this.$t("Cancel creation") as string);
@@ -1001,14 +1006,17 @@ export default class EditEvent extends Vue {
           { title: this.event.title }
         ) as string);
 
-    this.$buefy.dialog.confirm({
-      title,
-      message,
-      confirmText: this.$t("Abandon editing") as string,
-      cancelText: this.$t("Continue editing") as string,
-      type: "is-warning",
-      hasIcon: true,
-      onConfirm: callback,
+    return new Promise((resolve) => {
+      this.$buefy.dialog.confirm({
+        title,
+        message,
+        confirmText: this.$t("Abandon editing") as string,
+        cancelText: this.$t("Continue editing") as string,
+        type: "is-warning",
+        hasIcon: true,
+        onConfirm: () => resolve(true),
+        onCancel: () => resolve(false),
+      });
     });
   }
 
@@ -1016,21 +1024,29 @@ export default class EditEvent extends Vue {
    * Confirm cancel
    */
   confirmGoBack(): void {
-    this.confirmGoElsewhere(() => this.$router.go(-1));
+    this.$router.go(-1);
   }
 
   // eslint-disable-next-line consistent-return
-  beforeRouteLeave(to: Route, from: Route, next: () => void): void {
+  async beforeRouteLeave(
+    to: Route,
+    from: Route,
+    next: (to?: RawLocation | false | ((vm: any) => void)) => void
+  ): Promise<void> {
     if (to.name === RouteName.EVENT) return next();
-    this.confirmGoElsewhere(() => next());
+    if (await this.confirmGoElsewhere()) {
+      return next();
+    }
+    return next(false);
   }
 
   get isEventModified(): boolean {
-    // return (
-    //   JSON.stringify(this.event.toEditJSON()) !==
-    //   JSON.stringify(this.unmodifiedEvent)
-    // );
-    return false;
+    return (
+      this.event &&
+      this.unmodifiedEvent &&
+      JSON.stringify(toEditJSON(this.event)) !==
+        JSON.stringify(this.unmodifiedEvent)
+    );
   }
 
   get beginsOn(): Date {
diff --git a/lib/web/upload/filter/analyze_metadata.ex b/lib/web/upload/filter/analyze_metadata.ex
index cb7acbba9..ea12fb487 100644
--- a/lib/web/upload/filter/analyze_metadata.ex
+++ b/lib/web/upload/filter/analyze_metadata.ex
@@ -20,13 +20,7 @@ defmodule Mobilizon.Web.Upload.Filter.AnalyzeMetadata do
       |> Mogrify.open()
       |> Mogrify.verbose()
 
-    upload =
-      upload
-      |> Map.put(:width, image.width)
-      |> Map.put(:height, image.height)
-      |> Map.put(:blurhash, get_blurhash(file))
-
-    {:ok, :filtered, upload}
+    {:ok, :filtered, %Upload{upload | width: image.width, height: image.height}}
   rescue
     e in ErlangError ->
       Logger.warn("#{__MODULE__}: #{inspect(e)}")
@@ -34,14 +28,4 @@ defmodule Mobilizon.Web.Upload.Filter.AnalyzeMetadata do
   end
 
   def filter(_), do: {:ok, :noop}
-
-  defp get_blurhash(file) do
-    case :eblurhash.magick(to_charlist(file)) do
-      {:ok, blurhash} ->
-        to_string(blurhash)
-
-      _ ->
-        nil
-    end
-  end
 end
diff --git a/lib/web/upload/filter/blurhash.ex b/lib/web/upload/filter/blurhash.ex
new file mode 100644
index 000000000..b2454dea6
--- /dev/null
+++ b/lib/web/upload/filter/blurhash.ex
@@ -0,0 +1,31 @@
+defmodule Mobilizon.Web.Upload.Filter.BlurHash do
+  @moduledoc """
+  Computes blurhash from the upload
+  """
+  require Logger
+  alias Mobilizon.Web.Upload
+
+  @behaviour Mobilizon.Web.Upload.Filter
+
+  @spec filter(Upload.t()) ::
+          {:ok, :filtered, Upload.t()} | {:ok, :noop} | {:error, String.t()}
+  def filter(%Upload{tempfile: file, content_type: "image" <> _} = upload) do
+    {:ok, :filtered, %Upload{upload | blurhash: generate_blurhash(file)}}
+  rescue
+    e in ErlangError ->
+      Logger.warn("#{__MODULE__}: #{inspect(e)}")
+      {:ok, :noop}
+  end
+
+  def filter(_), do: {:ok, :noop}
+
+  defp generate_blurhash(file) do
+    case :eblurhash.magick(to_charlist(file)) do
+      {:ok, blurhash} ->
+        to_string(blurhash)
+
+      _ ->
+        nil
+    end
+  end
+end
diff --git a/lib/web/upload/filter/resize.ex b/lib/web/upload/filter/resize.ex
index 424d578aa..12c34ea7a 100644
--- a/lib/web/upload/filter/resize.ex
+++ b/lib/web/upload/filter/resize.ex
@@ -6,22 +6,27 @@ defmodule Mobilizon.Web.Upload.Filter.Resize do
   """
 
   @behaviour Mobilizon.Web.Upload.Filter
+  alias Mobilizon.Web.Upload
 
   @maximum_width 1_920
   @maximum_height 1_080
 
-  def filter(%Mobilizon.Web.Upload{
-        tempfile: file,
-        content_type: "image" <> _,
-        width: width,
-        height: height
-      }) do
+  def filter(
+        %Upload{
+          tempfile: file,
+          content_type: "image" <> _,
+          width: width,
+          height: height
+        } = upload
+      ) do
+    {new_width, new_height} = sizes = limit_sizes({width, height})
+
     file
     |> Mogrify.open()
-    |> Mogrify.resize(string(limit_sizes({width, height})))
+    |> Mogrify.resize(string(sizes))
     |> Mogrify.save(in_place: true)
 
-    {:ok, :filtered}
+    {:ok, :filtered, %Upload{upload | width: new_width, height: new_height}}
   end
 
   def filter(_), do: {:ok, :noop}
diff --git a/lib/web/upload/upload.ex b/lib/web/upload/upload.ex
index 13169ddc7..16b2f389b 100644
--- a/lib/web/upload/upload.ex
+++ b/lib/web/upload/upload.ex
@@ -62,9 +62,10 @@ defmodule Mobilizon.Web.Upload do
           path: String.t(),
           size: integer(),
           width: integer(),
-          height: integer()
+          height: integer(),
+          blurhash: String.t()
         }
-  defstruct [:id, :name, :tempfile, :content_type, :path, :size, :width, :height]
+  defstruct [:id, :name, :tempfile, :content_type, :path, :size, :width, :height, :blurhash]
 
   @spec store(source, options :: [option()]) :: {:ok, map()} | {:error, any()}
   def store(upload, opts \\ []) do