diff --git a/source/compose.manager/compose.manager.dashboard.page b/source/compose.manager/compose.manager.dashboard.page
index f847c9d..f6cf484 100644
--- a/source/compose.manager/compose.manager.dashboard.page
+++ b/source/compose.manager/compose.manager.dashboard.page
@@ -80,8 +80,13 @@ EOT;
 // Debug setting from config
 $debugEnabled = isset($cfg['DEBUG_TO_LOG']) && $cfg['DEBUG_TO_LOG'] === 'true' ? 'true' : 'false';
 $hideComposeContainersJs = $hideDockerComposeContainers ? 'true' : 'false';
+// Icon helpers live in their own file because composeManagerMain.js is not loaded on the Dashboard
+$iconsJsSrc = '/plugins/compose.manager/javascript/composeIcons.js';
+$iconsJsVer = @filemtime('/usr/local/emhttp' . $iconsJsSrc);
+if ($iconsJsVer) $iconsJsSrc .= '?v=' . $iconsJsVer;
 // CSS and JavaScript
 $configScript = <<<EOT
+<script src="$iconsJsSrc"></script>
 <script>
 window.composeDashDebug = $debugEnabled;
 window.hideDockerComposeContainers = $hideComposeContainersJs;
@@ -547,6 +552,12 @@ $script .= <<<'EOT'
             if (data.partial > 0) statusText += ', Partial: ' + data.partial;
             $('#compose_stacks_status').text(statusText);
 
+            // Hide compose-managed containers from the Docker Containers dashboard tile.
+            // Done before rendering so a render failure can't disable hiding.
+            if (window.hideDockerComposeContainers && data.composeContainerNames && data.composeContainerNames.length > 0) {
+                setupComposeContainerHiding(data.composeContainerNames);
+            }
+
             // Clear container cache since DOM will be rebuilt
             stackContainerCache = {};
 
@@ -654,11 +665,6 @@ $script .= <<<'EOT'
             }
             noStacks();
 
-            // Hide compose-managed containers from the Docker Containers dashboard tile
-            if (window.hideDockerComposeContainers && data.composeContainerNames && data.composeContainerNames.length > 0) {
-                setupComposeContainerHiding(data.composeContainerNames);
-            }
-
             debugLog('Loaded', data.stacks.length, 'stacks, context menus attached via onclick');
         }, 'json').fail(function() {
             $('#compose_stacks_status').text('Stacks -- Error loading');
@@ -740,7 +746,6 @@ $script .= <<<'EOT'
         if (!containerNames || containerNames.length === 0) return;
 
         debugLog('Setting up compose container hiding for:', containerNames);
-        console.log('[ComposeManager] Container names to hide:', containerNames);
 
         // Build a lookup object for fast case-insensitive matching
         composeContainerNameSet = {};
@@ -790,7 +795,6 @@ $script .= <<<'EOT'
             var name = extractContainerName($el);
             if (name && composeContainerNameSet[name.toLowerCase()]) {
                 debugLog('Hiding Docker tile container:', name);
-                console.log('[ComposeManager] Hiding:', name);
                 $el.addClass('compose-hidden-container');
                 hiddenCount++;
             }
diff --git a/source/compose.manager/include/ComposeManager.php b/source/compose.manager/include/ComposeManager.php
index 86a8ff4..88e1743 100755
--- a/source/compose.manager/include/ComposeManager.php
+++ b/source/compose.manager/include/ComposeManager.php
@@ -341,6 +341,7 @@ function compose_manager_cpu_spec_count($cpuSpec)
 <script src="<?php autov($acePath . '/ace.js'); ?>" type="text/javascript"></script>
 <script src="<?php autov('/plugins/compose.manager/javascript/js-yaml/js-yaml.min.js'); ?>" type="text/javascript"></script>
 <script src="<?php autov('/plugins/compose.manager/javascript/common.js'); ?>" type="text/javascript"></script>
+<script src="<?php autov('/plugins/compose.manager/javascript/composeIcons.js'); ?>" type="text/javascript"></script>
 <script src="<?php autov('/plugins/compose.manager/javascript/composeSortable.js'); ?>" type="text/javascript"></script>
 <script src="<?php autov('/plugins/compose.manager/javascript/composeStackUtils.js'); ?>" type="text/javascript"></script>
 <?php if (file_exists('/usr/local/emhttp/plugins/docker.versions/styles/styles.css')): ?>
diff --git a/source/compose.manager/include/Util.php b/source/compose.manager/include/Util.php
index ff91366..2aacac8 100644
--- a/source/compose.manager/include/Util.php
+++ b/source/compose.manager/include/Util.php
@@ -157,7 +157,10 @@ function compose_icon_ext_to_mime(string $ext): string
 }
 
 if (!function_exists('compose_icon_browser_url')) {
-    /** Return the URL the browser should use: proxy for http(s), passthrough otherwise. */
+    /**
+     * Return the URL the browser should use: proxy for http(s), passthrough otherwise.
+     * Data URIs are never proxied — the base64 payload would blow past URL length limits.
+     */
     function compose_icon_browser_url(string $src): string
     {
         $src = trim($src);
@@ -172,10 +175,9 @@ function compose_icon_browser_url(string $src): string
         }
 
         $isRemote = strncasecmp($src, 'http://', 7) === 0 || strncasecmp($src, 'https://', 8) === 0;
-        $isData = strncasecmp($src, 'data:image/', 11) === 0;
         $isCacheableLocal = str_starts_with($src, '/mnt/') || str_starts_with($src, '/boot/config/plugins/compose.manager/');
 
-        if ($isRemote || $isData || $isCacheableLocal) {
+        if ($isRemote || $isCacheableLocal) {
             return '/plugins/compose.manager/IconCache.php?src=' . urlencode($src);
         }
 
diff --git a/source/compose.manager/javascript/composeIcons.js b/source/compose.manager/javascript/composeIcons.js
new file mode 100644
index 0000000..52ac0fa
--- /dev/null
+++ b/source/compose.manager/javascript/composeIcons.js
@@ -0,0 +1,61 @@
+/**
+ * Shared icon helpers.
+ * Loaded by both the Compose page and the Dashboard tile — the tile has no
+ * access to composeManagerMain.js, so these must live in their own file.
+ */
+
+function composeIconFallback(img) {
+    if (!img || img.dataset.composeFallbackApplied === 'true') {
+        return;
+    }
+    img.dataset.composeFallbackApplied = 'true';
+    img.onerror = null;
+    img.src = '/plugins/compose.manager/images/question.png';
+}
+
+// Validate an icon source: http(s) URL, data URI, or local server path
+function isValidIconSrc(src) {
+    if (!src) return false;
+    var s = src.trim();
+    return s.indexOf('http://') === 0 || s.indexOf('https://') === 0 ||
+        s.indexOf('data:image/') === 0 || s.indexOf('/') === 0;
+}
+
+function isCacheEligibleLocalIconPath(src) {
+    if (!src) return false;
+    var s = src.trim();
+    return s.indexOf('/mnt/') === 0 || s.indexOf('/boot/config/plugins/compose.manager/') === 0;
+}
+
+/**
+ * Route cache-eligible icons through the local cache proxy; passthrough otherwise.
+ * Data URIs are never proxied — the base64 payload would blow past URL length limits.
+ */
+function composeIconSrc(src, containerName) {
+    if (!src || !isValidIconSrc(src)) {
+        return '/plugins/compose.manager/images/question.png';
+    }
+    var s = src.trim();
+    if (s.indexOf('/plugins/compose.manager/IconCache.php?') === 0) {
+        return s;
+    }
+
+    var cacheable = s.indexOf('http://') === 0 || s.indexOf('https://') === 0 ||
+        isCacheEligibleLocalIconPath(s);
+    if (cacheable) {
+        var proxied = '/plugins/compose.manager/IconCache.php?src=' + encodeURIComponent(s);
+        if (containerName && /^[A-Za-z0-9][A-Za-z0-9._-]*$/.test(containerName)) {
+            proxied += '&ct=' + encodeURIComponent(containerName);
+        }
+        return proxied;
+    }
+
+    return s;
+}
+
+if (typeof window !== 'undefined') {
+    window.composeIconFallback = composeIconFallback;
+    window.isValidIconSrc = isValidIconSrc;
+    window.isCacheEligibleLocalIconPath = isCacheEligibleLocalIconPath;
+    window.composeIconSrc = composeIconSrc;
+}
diff --git a/source/compose.manager/javascript/composeManagerMain.js b/source/compose.manager/javascript/composeManagerMain.js
index 1fa5357..5a21464 100644
--- a/source/compose.manager/javascript/composeManagerMain.js
+++ b/source/compose.manager/javascript/composeManagerMain.js
@@ -2452,51 +2452,8 @@ function isValidWebUIUrl(url) {
     }
 }
 
-function composeIconFallback(img) {
-    if (!img || img.dataset.composeFallbackApplied === 'true') {
-        return;
-    }
-    img.dataset.composeFallbackApplied = 'true';
-    img.onerror = null;
-    img.src = '/plugins/compose.manager/images/question.png';
-}
-
-// Validate an icon source: http(s) URL, data URI, or local server path
-function isValidIconSrc(src) {
-    if (!src) return false;
-    var s = src.trim();
-    return s.indexOf('http://') === 0 || s.indexOf('https://') === 0 ||
-        s.indexOf('data:image/') === 0 || s.indexOf('/') === 0;
-}
-
-function isCacheEligibleLocalIconPath(src) {
-    if (!src) return false;
-    var s = src.trim();
-    return s.indexOf('/mnt/') === 0 || s.indexOf('/boot/config/plugins/compose.manager/') === 0;
-}
-
-/** Route cache-eligible icons through the local cache proxy; passthrough otherwise. */
-function composeIconSrc(src, containerName) {
-    if (!src || !isValidIconSrc(src)) {
-        return '/plugins/compose.manager/images/question.png';
-    }
-    var s = src.trim();
-    if (s.indexOf('/plugins/compose.manager/IconCache.php?') === 0) {
-        return s;
-    }
-
-    var cacheable = s.indexOf('http://') === 0 || s.indexOf('https://') === 0 ||
-        s.indexOf('data:image/') === 0 || isCacheEligibleLocalIconPath(s);
-    if (cacheable) {
-        var proxied = '/plugins/compose.manager/IconCache.php?src=' + encodeURIComponent(s);
-        if (containerName && /^[A-Za-z0-9][A-Za-z0-9._-]*$/.test(containerName)) {
-            proxied += '&ct=' + encodeURIComponent(containerName);
-        }
-        return proxied;
-    }
-
-    return s;
-}
+// composeIconFallback/isValidIconSrc/isCacheEligibleLocalIconPath/composeIconSrc
+// live in composeIcons.js (shared with the dashboard tile).
 
 // Sanitize user-entered icon values before assigning to image src in live preview.
 function sanitizeIconPreviewSrc(raw) {