diff --git a/frontend/.eslintrc.js b/frontend/.eslintrc.js
index 8e1c4fb6f5ce..74d5ea509940 100644
--- a/frontend/.eslintrc.js
+++ b/frontend/.eslintrc.js
@@ -115,6 +115,9 @@ module.exports = {
         "indent": "off",
         "@typescript-eslint/indent": "off",
 
+        // Allow namespaces, they are generated into flat functions and we don't care about modules for helpers
+        "@typescript-eslint/no-namespace": "off",
+
         /*
         // Disable use before define, as irrelevant for TS interfaces
         "no-use-before-define": "off",
diff --git a/frontend/src/app/shared/components/datepicker/modal-single-date-picker/modal-single-date-picker.component.ts b/frontend/src/app/shared/components/datepicker/modal-single-date-picker/modal-single-date-picker.component.ts
index 06a412e4b573..3f92c37bb712 100644
--- a/frontend/src/app/shared/components/datepicker/modal-single-date-picker/modal-single-date-picker.component.ts
+++ b/frontend/src/app/shared/components/datepicker/modal-single-date-picker/modal-single-date-picker.component.ts
@@ -241,6 +241,7 @@ export class OpModalSingleDatePickerComponent implements ControlValueAccessor, O
         inline: true,
         onReady: (_date:Date[], _datestr:string, instance:flatpickr.Instance) => {
           instance.calendarContainer.classList.add('op-datepicker-modal--flatpickr-instance');
+          this.cdRef.detectChanges();
         },
         onChange: (dates:Date[]) => {
           if (dates.length > 0) {
@@ -263,7 +264,6 @@ export class OpModalSingleDatePickerComponent implements ControlValueAccessor, O
       },
       this.flatpickrTarget.nativeElement as HTMLElement,
     );
-    this.cdRef.detectChanges();
   }
 
   writeWorkingValue(value:string):void {
diff --git a/frontend/src/stimulus/controllers/async-dialog.controller.ts b/frontend/src/stimulus/controllers/async-dialog.controller.ts
index 3f65e3b6e655..2d0892701fe3 100644
--- a/frontend/src/stimulus/controllers/async-dialog.controller.ts
+++ b/frontend/src/stimulus/controllers/async-dialog.controller.ts
@@ -30,10 +30,9 @@
 
 import { ApplicationController } from 'stimulus-use';
 import { renderStreamMessage } from '@hotwired/turbo';
+import { TurboHelpers } from '../../turbo/helpers';
 
 export default class AsyncDialogController extends ApplicationController {
-  private loadingDialog:HTMLDialogElement|null;
-
   connect() {
     this.element.addEventListener('click', (e) => {
       e.preventDefault();
@@ -42,48 +41,20 @@ export default class AsyncDialogController extends ApplicationController {
   }
 
   triggerTurboStream():void {
-    let loaded = false;
-
-    setTimeout(() => {
-      if (!loaded) {
-        this.addLoading();
-      }
-    }, 100);
+    TurboHelpers.showProgressBar();
 
-    fetch(this.href, {
+    void fetch(this.href, {
       method: this.method,
       headers: {
         Accept: 'text/vnd.turbo-stream.html',
       },
     }).then((r) => r.text())
       .then((html) => {
-        loaded = true;
         renderStreamMessage(html);
       })
-      .finally(() => this.removeLoading());
-  }
-
-  removeLoading() {
-    this.loadingDialog?.remove();
-  }
-
-  addLoading() {
-    this.removeLoading();
-    const dialog = document.createElement('dialog');
-    dialog.classList.add('Overlay', 'Overlay--size-medium', 'Overlay--motion-scaleFade');
-    dialog.style.height = '150px';
-    dialog.style.display = 'grid';
-    dialog.style.placeContent = 'center';
-    dialog.id = 'loading';
-    dialog.innerHTML = `
-    <svg style="box-sizing: content-box; color: var(--color-icon-primary);" width="32" height="32" viewBox="0 0 16 16" fill="none" data-view-component="true" class="anim-rotate">
-      <circle cx="8" cy="8" r="7" stroke="currentColor" stroke-opacity="0.25" stroke-width="2" vector-effect="non-scaling-stroke" fill="none" />
-      <path d="M15 8a7.002 7.002 0 00-7-7" stroke="currentColor" stroke-width="2" stroke-linecap="round" vector-effect="non-scaling-stroke" />
-    </svg>
-    `;
-    document.body.appendChild(dialog);
-    dialog.showModal();
-    this.loadingDialog = dialog;
+      .finally(() => {
+        TurboHelpers.hideProgressBar();
+      });
   }
 
   get href() {
diff --git a/frontend/src/turbo/helpers.ts b/frontend/src/turbo/helpers.ts
new file mode 100644
index 000000000000..5922eb37f443
--- /dev/null
+++ b/frontend/src/turbo/helpers.ts
@@ -0,0 +1,11 @@
+import * as Turbo from '@hotwired/turbo';
+
+export namespace TurboHelpers {
+  export function showProgressBar() {
+    Turbo.session.adapter.formSubmissionStarted();
+  }
+
+  export function hideProgressBar() {
+    Turbo.session.adapter.formSubmissionFinished();
+  }
+}
diff --git a/frontend/src/typings/shims.d.ts b/frontend/src/typings/shims.d.ts
index c3552ccee51c..d00919774d9e 100644
--- a/frontend/src/typings/shims.d.ts
+++ b/frontend/src/typings/shims.d.ts
@@ -29,8 +29,14 @@ declare module 'dom-autoscroller';
 declare module 'core-vendor/enjoyhint';
 
 declare module '@hotwired/turbo' {
+  interface BrowserAdapter {
+    formSubmissionStarted:() => void;
+    formSubmissionFinished:() => void;
+  }
+
   export const session:{
     drive:boolean;
+    adapter:BrowserAdapter;
   };
 
   export const navigator:{
diff --git a/lookbook/docs/patterns/05-dialogs.md.erb b/lookbook/docs/patterns/05-dialogs.md.erb
index 12e969038681..7890b6183e24 100644
--- a/lookbook/docs/patterns/05-dialogs.md.erb
+++ b/lookbook/docs/patterns/05-dialogs.md.erb
@@ -24,6 +24,7 @@ end
 ```
 
 On the Rails controller you wish to render the dialog, you need to respond to the request with the dialog content.
+The async-controller stimulus controller will ensure that a loading progress bar will be shown on the top of the page.
 
 ```ruby
 class TestController < ApplicationControler
diff --git a/spec/support/components/datepicker/datepicker_modal.rb b/spec/support/components/datepicker/datepicker_modal.rb
index 002f86a14bb9..2af089c86497 100644
--- a/spec/support/components/datepicker/datepicker_modal.rb
+++ b/spec/support/components/datepicker/datepicker_modal.rb
@@ -3,7 +3,7 @@ class DatepickerModal < Datepicker
     def open_modal!
       retry_block do
         click_on "Non-working day", wait: 10
-        unless page.has_css?(".flatpickr-calendar")
+        unless page.has_css?(".flatpickr-calendar", wait: 10)
           click_on "Cancel"
           raise "Flatpickr should render a calendar"
         end