diff --git a/CHANGELOG.md b/CHANGELOG.md
index 04a71c0..f67bb59 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,14 @@
 
 All notable changes to this project will be documented in this file.
 
+## 2.8.6 - 2026-08-18
+
+### Fixed
+
+- Added live URL validation with inline feedback and explicit HTTP or HTTPS scheme enforcement for URL fields.
+- Prevented Enter in slide editor inputs from implicitly saving the slide.
+- Collapsed nested API response JSON sections by default while keeping the root response visible.
+
 ## 2.8.5 - 2026-08-17
 
 ### Fixed
diff --git a/build/package.player.json b/build/package.player.json
index 92f94ea..b61fcd6 100644
--- a/build/package.player.json
+++ b/build/package.player.json
@@ -1,6 +1,6 @@
 {
   "name": "pulse-signage-player",
-  "version": "2.8.5",
+  "version": "2.8.6",
   "private": false,
   "description": "Pulse Signage player application bundle",
   "engines": {
diff --git a/build/package.web.json b/build/package.web.json
index 606b9a5..6f71dbe 100644
--- a/build/package.web.json
+++ b/build/package.web.json
@@ -1,6 +1,6 @@
 {
   "name": "pulse-signage-web",
-  "version": "2.8.5",
+  "version": "2.8.6",
   "private": false,
   "description": "Pulse Signage web and bridge application bundle",
   "engines": {
diff --git a/package-lock.json b/package-lock.json
index 798fb10..1c4a690 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "pulse-signage",
-  "version": "2.8.5",
+  "version": "2.8.6",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "pulse-signage",
-      "version": "2.8.5",
+      "version": "2.8.6",
       "dependencies": {
         "@sparticuz/chromium": "^149.0.0",
         "animate.css": "^4.1.1",
diff --git a/package.json b/package.json
index 400d503..f187e1c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "pulse-signage",
-  "version": "2.8.5",
+  "version": "2.8.6",
   "private": false,
   "description": "Pulse Signage application with MySQL and media storage",
   "engines": {
diff --git a/src/web/public/js/admin/admin-page.js b/src/web/public/js/admin/admin-page.js
index 27a7c13..7d9371c 100644
--- a/src/web/public/js/admin/admin-page.js
+++ b/src/web/public/js/admin/admin-page.js
@@ -886,7 +886,7 @@
     var summaryLabel = isRoot ? (isArray ? 'Array' : 'Object') : String(key);
     var summaryMeta = isArray ? '[' + value.length + ']' : '{' + Object.keys(value).length + '}';
     return '' +
-      '<details class="json-tree-node" open>' +
+      '<details class="json-tree-node"' + (isRoot ? ' open' : '') + '>' +
         '<summary><span class="json-tree-key">' + escapeHtml(summaryLabel) + '</span><span class="mx-1">:</span><span class="text-body-secondary">' + escapeHtml(summaryMeta) + '</span></summary>' +
         '<div class="ms-3 ps-3 border-start">' + entries + '</div>' +
       '</details>';
@@ -945,26 +945,30 @@
           detail.open = expanded;
         });
 
-        if (collapseButton) {
-          collapseButton.disabled = !details.length || !expanded;
-        }
-        if (expandButton) {
-          expandButton.disabled = !details.length || expanded;
-        }
+        syncButtons();
       }
 
       function syncButtons() {
+        var details = output.querySelectorAll('details');
+        var allExpanded = details.length > 0 && Array.prototype.every.call(details, function (detail) { return detail.open; });
+        var allCollapsed = details.length > 0 && Array.prototype.every.call(details, function (detail) { return !detail.open; });
         if (collapseButton) {
-          collapseButton.setAttribute('aria-pressed', 'false');
+          collapseButton.disabled = !details.length || allCollapsed;
+          collapseButton.setAttribute('aria-pressed', String(allCollapsed));
         }
         if (expandButton) {
-          expandButton.setAttribute('aria-pressed', 'true');
+          expandButton.disabled = !details.length || allExpanded;
+          expandButton.setAttribute('aria-pressed', String(allExpanded));
         }
       }
 
       output.innerHTML = formattedTree;
+      setAllSectionsExpanded(false);
+      var rootDetails = output.querySelector('details');
+      if (rootDetails) {
+        rootDetails.open = true;
+      }
       syncButtons();
-      setAllSectionsExpanded(true);
 
       if (collapseButton) {
         collapseButton.addEventListener('click', function () {
diff --git a/src/web/public/js/regions/type/qr-code.js b/src/web/public/js/regions/type/qr-code.js
index 626c283..f3240fa 100644
--- a/src/web/public/js/regions/type/qr-code.js
+++ b/src/web/public/js/regions/type/qr-code.js
@@ -1029,7 +1029,7 @@
         '</div>' +
         '<div class="card-body p-3 d-grid gap-2">' +
           '<label class="form-label mb-1" for="region_qr_code_' + region.id + '">URL</label>' +
-          '<input id="region_qr_code_' + region.id + '" type="url" name="region_qr_code_' + region.id + '" class="form-control" value="' + escapeHtml(current) + '" placeholder="https://example.com" />' +
+          '<input id="region_qr_code_' + region.id + '" type="url" name="region_qr_code_' + region.id + '" class="form-control" value="' + escapeHtml(current) + '" placeholder="https://example.com" required />' +
           '<textarea name="region_qr_svg_' + region.id + '" class="visually-hidden" hidden>' + escapeHtml(currentSvg) + '</textarea>' +
           '<input type="hidden" name="region_qr_preview_' + region.id + '" value="' + escapeHtml(String(context.qr_preview || '')) + '" />' +
           '<div class="card card-outline card-secondary overflow-hidden mt-2">' +
diff --git a/src/web/public/js/regions/type/webpage.js b/src/web/public/js/regions/type/webpage.js
index 9bbd1e9..4222226 100644
--- a/src/web/public/js/regions/type/webpage.js
+++ b/src/web/public/js/regions/type/webpage.js
@@ -50,7 +50,7 @@
       headerActions: '<span class="chip">Webpage</span>',
       bodyHtml: '' +
         '<div class="input-group flex-nowrap">' +
-          '<input type="url" name="region_webpage_' + region.id + '" class="form-control" value="' + escapeHtml(current) + '" placeholder="https://example.com" />' +
+          '<input type="url" name="region_webpage_' + region.id + '" class="form-control" value="' + escapeHtml(current) + '" placeholder="https://example.com" required />' +
           '<button type="button" class="btn btn-outline-secondary text-nowrap" data-webpage-preview-update data-region-id="' + region.id + '">Update</button>' +
         '</div>'
     });
diff --git a/src/web/public/js/slides/slide-form.js b/src/web/public/js/slides/slide-form.js
index cf49ffa..79e5759 100644
--- a/src/web/public/js/slides/slide-form.js
+++ b/src/web/public/js/slides/slide-form.js
@@ -842,6 +842,15 @@ import { createSlideFormPreviewHelpers } from '/assets/js/slides/slide-form-prev
     requestPreviewRender();
   }
 
+  slideForm.addEventListener('keydown', function (event) {
+    var target = event.target;
+    if (event.key !== 'Enter' || !target || !target.matches || !target.matches('input:not([type="submit"]):not([type="button"]):not([type="reset"]), select')) {
+      return;
+    }
+
+    event.preventDefault();
+  });
+
   slideForm.addEventListener('submit', function (event) {
     if (!window.webAsyncSaveForm || typeof window.webAsyncSaveForm.submit !== 'function') {
       return;
diff --git a/src/web/public/js/web-ui-helpers.js b/src/web/public/js/web-ui-helpers.js
index bda1878..d371238 100644
--- a/src/web/public/js/web-ui-helpers.js
+++ b/src/web/public/js/web-ui-helpers.js
@@ -1,6 +1,98 @@
 // Shared browser helpers for web UI escaping and formatting.
 
 (function () {
+  var urlValidationMessage = 'Please enter a URL.';
+
+  function isUrlInput(input) {
+    return input && input.matches && input.matches('input[type="url"]');
+  }
+
+  function isValidHttpUrl(input) {
+    input.setCustomValidity('');
+    var value = String(input.value || '').trim();
+    var hasValidNativeUrl = input.validity.valid;
+    var hasExplicitHttpScheme = /^https?:\/\/[^\s]+$/i.test(value);
+    var isValid = hasValidNativeUrl && hasExplicitHttpScheme;
+    if (!isValid) {
+      input.setCustomValidity(urlValidationMessage);
+    }
+    return isValid;
+  }
+
+  function getUrlFeedback(input) {
+    if (input._urlFeedback && input._urlFeedback.parentNode) {
+      return input._urlFeedback;
+    }
+
+    var feedbackId = input.id ? input.id + '-url-feedback' : '';
+    var feedback = feedbackId ? document.getElementById(feedbackId) : null;
+    if (feedback) {
+      var inputGroup = input.closest ? input.closest('.input-group') : null;
+      var feedbackAnchor = inputGroup || input;
+      feedbackAnchor.parentNode.insertBefore(feedback, feedbackAnchor.nextSibling);
+      input._urlFeedback = feedback;
+      return feedback;
+    }
+
+    feedback = document.createElement('div');
+    if (feedbackId) {
+      feedback.id = feedbackId;
+    }
+    feedback.className = 'invalid-feedback';
+    feedback.setAttribute('role', 'alert');
+    feedback.textContent = urlValidationMessage;
+
+    var inputGroup = input.closest ? input.closest('.input-group') : null;
+    var feedbackAnchor = inputGroup || input;
+    feedbackAnchor.parentNode.insertBefore(feedback, feedbackAnchor.nextSibling);
+    if (input.id) {
+      input.setAttribute('aria-describedby', feedback.id);
+    }
+    input._urlFeedback = feedback;
+    return feedback;
+  }
+
+  function updateUrlValidation(input, showFeedback) {
+    if (!isUrlInput(input)) {
+      return true;
+    }
+
+    var isValid = isValidHttpUrl(input);
+    if (!isValid && showFeedback) {
+      var feedback = getUrlFeedback(input);
+      feedback.hidden = false;
+      feedback.classList.add('d-block');
+      input.classList.add('is-invalid');
+    } else if (isValid) {
+      if (input.id) {
+        document.querySelectorAll('[id="' + input.id + '-url-feedback"]').forEach(function (feedback) {
+          feedback.hidden = true;
+          feedback.classList.remove('d-block');
+        });
+      } else if (input._urlFeedback) {
+        input._urlFeedback.hidden = true;
+        input._urlFeedback.classList.remove('d-block');
+      }
+      input.classList.remove('is-invalid');
+    }
+
+    return isValid;
+  }
+
+  function initializeUrlValidation() {
+    document.addEventListener('input', function (event) {
+      if (isUrlInput(event.target)) {
+        updateUrlValidation(event.target, true);
+      }
+    });
+    document.addEventListener('invalid', function (event) {
+      if (isUrlInput(event.target)) {
+        event.preventDefault();
+        updateUrlValidation(event.target, true);
+      }
+    }, true);
+  }
+
   function escapeHtml(value) {
     return String(value ?? '')
       .replace(/&/g, '&amp;')
@@ -97,6 +189,7 @@
   }
 
   window.escapeHtml = escapeHtml;
+  initializeUrlValidation();
 
   var defaultQrOptions = window.defaultQrOptions || {
     width: 1000,