diff --git a/src/api/client.js b/src/api/client.js
index 7a90a58..2097a7b 100644
--- a/src/api/client.js
+++ b/src/api/client.js
@@ -90,7 +90,7 @@ apiClient.interceptors.response.use(
       deleteCookie("luciaToken");
       deleteCookie("luciaRefreshToken");
       deleteCookie("isLuciaLoggedIn");
-      window.location.href = "/login";
+      globalThis.location.href = "/login";
       return Promise.reject(refreshError);
     }
   },
diff --git a/src/utils/jsUtils.js b/src/utils/jsUtils.js
index 92e35b9..bd1cac5 100644
--- a/src/utils/jsUtils.js
+++ b/src/utils/jsUtils.js
@@ -34,6 +34,6 @@ export const printObject = (obj, indent = 0) => {
  */
 export const getRandomInt = (max) => {
   const array = new Uint32Array(1);
-  window.crypto.getRandomValues(array);
+  globalThis.crypto.getRandomValues(array);
   return Math.floor((array[0] / (0xffffffff + 1)) * (max + 1));
 };
diff --git a/src/views/Compare/Dashboard/CompareDashboard.vue b/src/views/Compare/Dashboard/CompareDashboard.vue
index 162bc09..007ddfd 100644
--- a/src/views/Compare/Dashboard/CompareDashboard.vue
+++ b/src/views/Compare/Dashboard/CompareDashboard.vue
@@ -409,7 +409,7 @@ function handleClick(tagId) {
   isActive.value = tagId;
 
   if (isSafeTagId(tagId)) {
-    window.location.href = tagId;
+    globalThis.location.href = tagId;
   } else {
     console.warn("Unsafe tagId: ", tagId);
   }
diff --git a/src/views/Discover/Performance/PerformancePage.vue b/src/views/Discover/Performance/PerformancePage.vue
index 14a9b2e..26ef4e3 100644
--- a/src/views/Discover/Performance/PerformancePage.vue
+++ b/src/views/Discover/Performance/PerformancePage.vue
@@ -392,7 +392,7 @@ function handleClick(tagId) {
   isActive.value = tagId;
 
   if (isSafeTagId(tagId)) {
-    window.location.href = tagId;
+    globalThis.location.href = tagId;
   } else {
     console.warn("Unsafe tagId: ", tagId);
   }
diff --git a/src/views/Files/FilesPage.vue b/src/views/Files/FilesPage.vue
index d3f7338..2a8c547 100644
--- a/src/views/Files/FilesPage.vue
+++ b/src/views/Files/FilesPage.vue
@@ -928,7 +928,7 @@ const handleWindowClick = (e) => {
 onMounted(async () => {
   isLoading.value = true;
   await store.fetchAllFiles();
-  window.addEventListener("click", handleWindowClick);
+  globalThis.addEventListener("click", handleWindowClick);
   // Add the .scrollbar class to the DataTable tbody
   const tbodyElement = document.querySelector(".p-datatable-tbody");
   tbodyElement?.classList.add("scrollbar");
@@ -936,7 +936,7 @@ onMounted(async () => {
 });
 
 onBeforeUnmount(() => {
-  window.removeEventListener("click", handleWindowClick);
+  globalThis.removeEventListener("click", handleWindowClick);
 });
 </script>
 <style scoped>
diff --git a/src/views/Upload/UploadPage.vue b/src/views/Upload/UploadPage.vue
index 5ce9692..347452c 100644
--- a/src/views/Upload/UploadPage.vue
+++ b/src/views/Upload/UploadPage.vue
@@ -329,7 +329,7 @@ function getTextWidth(text, e) {
   const hiddenSpan = document.createElement("span");
 
   hiddenSpan.textContent = processedText;
-  hiddenSpan.style.font = window.getComputedStyle(e).font;
+  hiddenSpan.style.font = globalThis.getComputedStyle(e).font;
   hiddenSpan.style.visibility = "hidden";
   document.body.appendChild(hiddenSpan);
   const width = hiddenSpan.getBoundingClientRect().width;
diff --git a/tests/stores/files.test.js b/tests/stores/files.test.js
index 5356f60..93e5027 100644
--- a/tests/stores/files.test.js
+++ b/tests/stores/files.test.js
@@ -235,13 +235,13 @@ describe("filesStore", () => {
     it("downloads CSV for a log", async () => {
       mockGet.mockResolvedValue({ data: "col1,col2\na,b" });
 
-      window.URL.createObjectURL = vi.fn().mockReturnValue("blob:test");
-      window.URL.revokeObjectURL = vi.fn();
+      globalThis.URL.createObjectURL = vi.fn().mockReturnValue("blob:test");
+      globalThis.URL.revokeObjectURL = vi.fn();
 
       await store.downloadFileCSV("log", 3, "my-file");
 
       expect(mockGet).toHaveBeenCalledWith("/api/logs/3/csv");
-      expect(window.URL.revokeObjectURL).toHaveBeenCalledWith("blob:test");
+      expect(globalThis.URL.revokeObjectURL).toHaveBeenCalledWith("blob:test");
     });
 
     it("returns early for unsupported type", async () => {
diff --git a/tests/stores/login.test.js b/tests/stores/login.test.js
index b3c30c6..2080b20 100644
--- a/tests/stores/login.test.js
+++ b/tests/stores/login.test.js
@@ -96,15 +96,15 @@ describe("loginStore", () => {
       // btoa('/dashboard') = 'L2Rhc2hib2FyZA=='
       store.rememberedReturnToUrl = btoa("/dashboard");
 
-      // Mock window.location.href setter
-      const originalLocation = window.location;
-      delete window.location;
-      window.location = { href: "" };
+      // Mock globalThis.location.href setter
+      const originalLocation = globalThis.location;
+      delete globalThis.location;
+      globalThis.location = { href: "" };
 
       await store.signIn();
 
-      expect(window.location.href).toBe("/dashboard");
-      window.location = originalLocation;
+      expect(globalThis.location.href).toBe("/dashboard");
+      globalThis.location = originalLocation;
     });
 
     it("does not redirect to external URL (open redirect prevention)", async () => {
@@ -117,17 +117,17 @@ describe("loginStore", () => {
       // Attacker crafts a return-to URL pointing to an external site
       store.rememberedReturnToUrl = btoa("https://evil.example.com/steal");
 
-      const originalLocation = window.location;
-      delete window.location;
-      window.location = { href: "" };
+      const originalLocation = globalThis.location;
+      delete globalThis.location;
+      globalThis.location = { href: "" };
 
       await store.signIn();
 
       // Should NOT redirect to the external URL
-      expect(window.location.href).not.toBe("https://evil.example.com/steal");
+      expect(globalThis.location.href).not.toBe("https://evil.example.com/steal");
       // Should fall back to /files
       expect(store.$router.push).toHaveBeenCalledWith("/files");
-      window.location = originalLocation;
+      globalThis.location = originalLocation;
     });
 
     it("falls back to /files when return-to is not valid base64", async () => {