diff --git a/server/static/index.html b/server/static/index.html
index a3d395764..a0982d8f4 100644
--- a/server/static/index.html
+++ b/server/static/index.html
@@ -1,58 +1,70 @@
-<!doctype html>
+<!DOCTYPE html>
 <html lang="en">
+  <head>
+    <title>Outline</title>
+    <meta name="slack-app-id" content="//inject-slack-app-id//" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <link
+      rel="shortcut icon"
+      type="image/png"
+      href="favicon-32.png"
+      sizes="32x32"
+    />
+    <link rel="manifest" href="/manifest.json" />
+    <link
+      rel="search"
+      type="application/opensearchdescription+xml"
+      href="/opensearch.xml"
+      title="Outline"
+    />
+    <style>
+      body,
+      html {
+        margin: 0;
+        padding: 0;
+      }
 
-<head>
-  <title>Outline</title>
-  <meta name="slack-app-id" content="//inject-slack-app-id//" />
-  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
-  <link rel="shortcut icon" type="image/png" href="favicon-32.png" sizes="32x32" />
-  <link rel="manifest" href="/manifest.json" />
-  <link rel="search" type="application/opensearchdescription+xml" href="/opensearch.xml" title="Outline" />
-  <style>
-    body,
-    html {
-      margin: 0;
-      padding: 0;
-    }
+      body {
+        display: flex;
+        width: 100%;
+        height: 100%;
+      }
 
-    body {
-      display: flex;
-      width: 100%;
-      height: 100%;
-    }
+      #root {
+        flex: 1;
+        min-height: 100vh;
+      }
+    </style>
+  </head>
 
-    #root {
-      flex: 1;
-      min-height: 100vh;
-    }
-  </style>
-</head>
-
-<body>
-  <div id="root"></div>
-  <script>//inject-env//</script>
-  <script src="https://browser.sentry-cdn.com/5.22.3/bundle.min.js"
-    integrity="sha384-A1qzcXXJWl+bzYr+r8AdFzSaLbdcbYRFmG37MEDKr4EYjtraUyoZ6UiMw31jHcV9" crossorigin="anonymous">
+  <body>
+    <div id="root"></div>
+    <script>
+      //inject-env//
     </script>
-  <script>
-    if ('//inject-sentry-dsn//') {
-      Sentry.init({
-        dsn: '//inject-sentry-dsn//',
-        ignoreErrors: [
-          'AuthorizationError',
-          'NetworkError',
-          'NotFoundError',
-          'OfflineError',
-          'UpdateRequiredError',
-          'ChunkLoadError'
-        ],
-      });
-    }
+    <script
+      src="https://browser.sentry-cdn.com/5.22.3/bundle.min.js"
+      integrity="sha384-A1qzcXXJWl+bzYr+r8AdFzSaLbdcbYRFmG37MEDKr4EYjtraUyoZ6UiMw31jHcV9"
+      crossorigin="anonymous"
+    ></script>
+    <script>
+      if ("//inject-sentry-dsn//" && window.Sentry) {
+        window.Sentry.init({
+          dsn: "//inject-sentry-dsn//",
+          ignoreErrors: [
+            "AuthorizationError",
+            "NetworkError",
+            "NotFoundError",
+            "OfflineError",
+            "UpdateRequiredError",
+            "ChunkLoadError",
+          ],
+        });
+      }
 
-    if (window.localStorage.getItem("theme") === "dark") {
-      window.document.querySelector('#root').style.background = "#111319";
-    }
-  </script>
-</body>
-
-</html>
\ No newline at end of file
+      if (window.localStorage.getItem("theme") === "dark") {
+        window.document.querySelector("#root").style.background = "#111319";
+      }
+    </script>
+  </body>
+</html>
