diff --git a/api/src/app/app.ts b/api/src/app/app.ts
index bdaee04..433b8a5 100644
--- a/api/src/app/app.ts
+++ b/api/src/app/app.ts
@@ -22,8 +22,8 @@ export async function app(fastify: FastifyInstance, opts: AppOptions) {
       });
     }
 
-    // Log unauthorized access attempts
-    if (error.statusCode === 401 || error.statusCode === 403) {
+    // Log unauthorized access attempts (exclude /api/auth/me as 401s there are expected during token refresh)
+    if ((error.statusCode === 401 || error.statusCode === 403) && request.url !== '/api/auth/me') {
       await AuditService.log({
         action: AuditAction.unauthorizedAccess,
         category: AuditCategory.security,
diff --git a/api/src/app/services/book.service.ts b/api/src/app/services/book.service.ts
index 638d302..5fcf34c 100644
--- a/api/src/app/services/book.service.ts
+++ b/api/src/app/services/book.service.ts
@@ -36,10 +36,6 @@ export class BookService {
     if (!validateStringLength(data.notes, MAX_LENGTHS.NOTES)) {
       throw new Error(`Notes must be ${MAX_LENGTHS.NOTES} characters or less.`);
     }
-    if (!validateStringLength(data.coverImage, MAX_LENGTHS.URL)) {
-      throw new Error(`Cover image URL must be ${MAX_LENGTHS.URL} characters or less.`);
-    }
-
     // Validate rating
     if (!validateRating(data.rating)) {
       throw new Error("Rating must be an integer between 0 and 10.");
@@ -47,7 +43,11 @@ export class BookService {
 
     if (data.coverImage) {
       if (data.coverImage.startsWith("data:")) {
-        const sizeInBytes = data.coverImage.length * 0.75;
+        const base64Data = data.coverImage.split(",")[1];
+        if (!base64Data) {
+          throw new Error("Invalid image data URL format.");
+        }
+        const sizeInBytes = base64Data.length * 0.75;
         if (sizeInBytes > MAX_LENGTHS.DATA_URL) {
           throw new Error("Cover image must be under 5MB.");
         }
diff --git a/api/src/app/services/manga.service.ts b/api/src/app/services/manga.service.ts
index 1fa19b5..40beb10 100644
--- a/api/src/app/services/manga.service.ts
+++ b/api/src/app/services/manga.service.ts
@@ -33,10 +33,6 @@ export class MangaService {
     if (!validateStringLength(data.notes, MAX_LENGTHS.NOTES)) {
       throw new Error(`Notes must be ${MAX_LENGTHS.NOTES} characters or less.`);
     }
-    if (!validateStringLength(data.coverImage, MAX_LENGTHS.URL)) {
-      throw new Error(`Cover image URL must be ${MAX_LENGTHS.URL} characters or less.`);
-    }
-
     // Validate rating
     if (!validateRating(data.rating)) {
       throw new Error("Rating must be an integer between 0 and 10.");
@@ -45,7 +41,11 @@ export class MangaService {
     // Validate cover image URL
     if (data.coverImage) {
       if (data.coverImage.startsWith("data:")) {
-        const sizeInBytes = data.coverImage.length * 0.75;
+        const base64Data = data.coverImage.split(",")[1];
+        if (!base64Data) {
+          throw new Error("Invalid image data URL format.");
+        }
+        const sizeInBytes = base64Data.length * 0.75;
         if (sizeInBytes > MAX_LENGTHS.DATA_URL) {
           throw new Error("Cover image must be under 5MB.");
         }
diff --git a/api/src/app/services/music.service.ts b/api/src/app/services/music.service.ts
index c0480d8..0652c0b 100644
--- a/api/src/app/services/music.service.ts
+++ b/api/src/app/services/music.service.ts
@@ -33,10 +33,6 @@ export class MusicService {
     if (!validateStringLength(data.notes, MAX_LENGTHS.NOTES)) {
       throw new Error(`Notes must be ${MAX_LENGTHS.NOTES} characters or less.`);
     }
-    if (!validateStringLength(data.coverArt, MAX_LENGTHS.URL)) {
-      throw new Error(`Cover art URL must be ${MAX_LENGTHS.URL} characters or less.`);
-    }
-
     // Validate rating
     if (data.rating !== undefined && !validateRating(data.rating)) {
       throw new Error("Rating must be an integer between 0 and 10.");
@@ -45,7 +41,11 @@ export class MusicService {
     // Validate cover art URL
     if (data.coverArt) {
       if (data.coverArt.startsWith("data:")) {
-        const sizeInBytes = data.coverArt.length * 0.75;
+        const base64Data = data.coverArt.split(",")[1];
+        if (!base64Data) {
+          throw new Error("Invalid image data URL format.");
+        }
+        const sizeInBytes = base64Data.length * 0.75;
         if (sizeInBytes > MAX_LENGTHS.DATA_URL) {
           throw new Error("Cover image must be under 5MB.");
         }
diff --git a/api/src/app/services/show.service.ts b/api/src/app/services/show.service.ts
index cda0ec9..5d5aed9 100644
--- a/api/src/app/services/show.service.ts
+++ b/api/src/app/services/show.service.ts
@@ -30,10 +30,6 @@ export class ShowService {
     if (!validateStringLength(data.notes, MAX_LENGTHS.NOTES)) {
       throw new Error(`Notes must be ${MAX_LENGTHS.NOTES} characters or less.`);
     }
-    if (!validateStringLength(data.coverImage, MAX_LENGTHS.URL)) {
-      throw new Error(`Cover image URL must be ${MAX_LENGTHS.URL} characters or less.`);
-    }
-
     // Validate rating
     if (!validateRating(data.rating)) {
       throw new Error("Rating must be an integer between 0 and 10.");
@@ -42,7 +38,11 @@ export class ShowService {
     // Validate cover image URL
     if (data.coverImage) {
       if (data.coverImage.startsWith("data:")) {
-        const sizeInBytes = data.coverImage.length * 0.75;
+        const base64Data = data.coverImage.split(",")[1];
+        if (!base64Data) {
+          throw new Error("Invalid image data URL format.");
+        }
+        const sizeInBytes = base64Data.length * 0.75;
         if (sizeInBytes > MAX_LENGTHS.DATA_URL) {
           throw new Error("Cover image must be under 5MB.");
         }
diff --git a/apps/frontend/src/app/services/global-error-handler.service.ts b/apps/frontend/src/app/services/global-error-handler.service.ts
index d798e38..7270dea 100644
--- a/apps/frontend/src/app/services/global-error-handler.service.ts
+++ b/apps/frontend/src/app/services/global-error-handler.service.ts
@@ -12,6 +12,11 @@ export class GlobalErrorHandler implements ErrorHandler {
   private toast = inject(ToastService);
 
   handleError(error: Error): void {
+    if (error.name === 'ChunkLoadError' || error.message.includes('Loading chunk')) {
+      window.location.reload();
+      return;
+    }
+
     console.error('Global error caught:', error);
 
     // Show user-friendly error message