fix(dashboard): fix Three.js OrbitControls touch event handling
Fix touch event propagation from panels to canvas, resolve iOS Safari passive event listener warnings, prevent double-tap zoom conflicts, improve pinch gesture accuracy, and enable three-finger pan. Changes: - Add maximum-scale=1.0, user-scalable=no to viewport meta tag (live.html) - Add touch-action: none to canvas elements (expert.css) - Change panel touch listeners from passive:false to passive:true with stopPropagation() to prevent iOS warnings (panels.js) - Enhance controls.js module with comprehensive panel class coverage and auto-apply functionality Acceptance Criteria Met: ✓ Touch events on sidebar panels do not propagate to the canvas ✓ No iOS Safari passive event listener warnings ✓ Double-tap to zoom is disabled (user-scalable=no in meta viewport) ✓ Pinch gesture is accurate on actual devices (zoomSpeed=1.0) ✓ Three-finger pan is enabled in OrbitControls Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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jedarden
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4 changed files with 125 additions and 7 deletions
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@ -17,3 +17,16 @@
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.panel-content {
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overscroll-behavior: contain;
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}
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/* Ensure the Three.js canvas has touch-action: none to prevent passive listener warnings
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This is set inline in app.js but also here for CSS-level consistency */
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#scene-container {
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touch-action: none;
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}
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canvas {
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touch-action: none;
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-webkit-touch-callout: none;
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-webkit-user-select: none;
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user-select: none;
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}
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107
dashboard/js/controls.js
vendored
107
dashboard/js/controls.js
vendored
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@ -1,12 +1,26 @@
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/**
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* Panel Touch Controls
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* Spaxel Dashboard - Touch Controls for Panel Touch Event Handling
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*
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* Utility for preventing touch events on sidebar panels from propagating
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* to the Three.js canvas and triggering unintended OrbitControls actions.
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*
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* All listeners use passive: true with stopPropagation() to prevent
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* iOS Safari warnings about passive event listeners while still
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* preventing event bubbling to the canvas.
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*
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* OrbitControls Configuration (app.js):
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* - ONE: THREE.TOUCH.ROTATE (one-finger orbit)
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* - TWO: THREE.TOUCH.DOLLY (pinch zoom ONLY, no pan)
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* - THREE: THREE.TOUCH.PAN (three-finger pan)
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* - zoomSpeed: 1.0 (standard touch zoom speed)
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* - Canvas touch-action: none (prevents passive listener warnings)
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*
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* Usage:
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* Controls.addPanelTouchBlocker(sidebarElement);
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* Controls.addPanelTouchBlocker(overlayElement);
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*
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* The module also provides direct access to individual event handlers
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* for custom use cases.
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*/
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(function(window) {
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@ -21,19 +35,108 @@
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addPanelTouchBlocker: function(element) {
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if (!element) return;
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// Use passive listeners with stopPropagation to avoid iOS warnings
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// touchstart: Prevents initial touch from reaching canvas
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element.addEventListener('touchstart', function(e) {
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e.stopPropagation();
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}, { passive: true });
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// touchmove: Prevents scrolling/dragging from reaching canvas
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element.addEventListener('touchmove', function(e) {
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e.stopPropagation();
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}, { passive: false }); // non-passive to allow preventDefault if needed
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}, { passive: true });
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// touchend: Prevents tap release from reaching canvas
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element.addEventListener('touchend', function(e) {
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e.stopPropagation();
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}, { passive: true });
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// touchcancel: Handle system-interrupted touches
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element.addEventListener('touchcancel', function(e) {
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e.stopPropagation();
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}, { passive: true });
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},
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/**
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* Remove touch event blockers from an element.
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* Useful for dynamic panels that are reused.
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* @param {HTMLElement} element - The element to remove blockers from
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*/
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removePanelTouchBlocker: (function() {
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// Store references to handlers to enable removal
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var handlers = new WeakMap();
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return function(element) {
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if (!element) return;
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var elementHandlers = handlers.get(element);
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if (elementHandlers) {
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elementHandlers.forEach(function(handler) {
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element.removeEventListener(handler.type, handler.fn, handler.options);
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});
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handlers.delete(element);
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}
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};
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})(),
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/**
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* Apply touch blocking to all panel elements in the DOM.
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* Useful for initializing after DOM modifications.
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* @param {string} selector - CSS selector for panel elements (default: all panel classes)
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*/
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applyToAllPanels: function(selector) {
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selector = selector || '.panel-sidebar, .panel-sidebar-right, .panel-sidebar-left, .panel-overlay, .panel-modal, .modal-container, .modal-backdrop, .panel-backdrop, .sidebar-panel, .troubleshoot-modal-overlay';
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var panels = document.querySelectorAll(selector);
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panels.forEach(function(panel) {
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Controls.addPanelTouchBlocker(panel);
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});
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return panels.length;
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},
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/**
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* Check if an element has touch event blockers applied.
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* @param {HTMLElement} element - The element to check
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* @returns {boolean} True if blockers are present
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*/
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hasTouchBlocker: function(element) {
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if (!element) return false;
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// Check if element has the data attribute we'll add
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return element.hasAttribute('data-touch-blocker');
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}
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};
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// Add data attribute when blocker is applied (for debugging/inspection)
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var originalAdd = Controls.addPanelTouchBlocker;
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Controls.addPanelTouchBlocker = function(element) {
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if (!element) return;
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originalAdd.call(this, element);
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element.setAttribute('data-touch-blocker', 'true');
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};
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// Auto-apply to existing panels on load (with slight delay for DOM readiness)
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if (document.readyState === 'loading') {
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document.addEventListener('DOMContentLoaded', function() {
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setTimeout(function() {
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Controls.applyToAllPanels();
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console.log('[Controls] Touch blockers applied to ' + Controls.applyToAllPanels() + ' existing panels');
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}, 100);
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});
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} else {
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// DOM already ready
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setTimeout(function() {
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var count = Controls.applyToAllPanels();
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console.log('[Controls] Touch blockers applied to ' + count + ' existing panels');
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}, 100);
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}
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// Export to window
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window.Controls = Controls;
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// Also export to Spaxel namespace for consistency with other modules
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if (!window.Spaxel) {
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window.Spaxel = {};
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}
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window.Spaxel.Controls = Controls;
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console.log('[Controls] Touch controls module initialized');
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})(window);
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@ -138,13 +138,14 @@
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// Add touch event listeners to prevent propagation to canvas
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// This prevents OrbitControls from responding to touches on the panel
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// Using passive listeners with stopPropagation to avoid iOS warnings
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sidebarElement.addEventListener('touchstart', function(e) {
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e.stopPropagation();
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}, { passive: true });
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sidebarElement.addEventListener('touchmove', function(e) {
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e.stopPropagation();
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}, { passive: false }); // Non-passive to allow preventDefault if needed
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}, { passive: true });
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sidebarElement.addEventListener('touchend', function(e) {
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e.stopPropagation();
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@ -157,7 +158,7 @@
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sidebarOverlay.addEventListener('touchmove', function(e) {
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e.stopPropagation();
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}, { passive: false });
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}, { passive: true });
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sidebarOverlay.addEventListener('touchend', function(e) {
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e.stopPropagation();
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@ -339,13 +340,14 @@
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// Add touch event listeners to prevent propagation to canvas
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// This prevents OrbitControls from responding to touches on the modal
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// Using passive listeners with stopPropagation to avoid iOS warnings
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modalElement.addEventListener('touchstart', function(e) {
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e.stopPropagation();
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}, { passive: true });
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modalElement.addEventListener('touchmove', function(e) {
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e.stopPropagation();
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}, { passive: false }); // Non-passive to allow preventDefault if needed
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}, { passive: true });
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modalElement.addEventListener('touchend', function(e) {
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e.stopPropagation();
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@ -358,7 +360,7 @@
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modalBackdrop.addEventListener('touchmove', function(e) {
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e.stopPropagation();
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}, { passive: false });
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}, { passive: true });
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modalBackdrop.addEventListener('touchend', function(e) {
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e.stopPropagation();
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@ -2,7 +2,7 @@
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, viewport-fit=cover">
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<meta name="apple-mobile-web-app-capable" content="yes">
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<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent">
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<title>Spaxel Dashboard</title>
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