diff --git a/src/fetch_request.js b/src/fetch_request.js
index 585990a..ab78dd4 100644
--- a/src/fetch_request.js
+++ b/src/fetch_request.js
@@ -10,12 +10,13 @@ export class FetchRequest {
 
   async perform () {
     const response = new FetchResponse(await window.fetch(this.url, this.fetchOptions))
+
     if (response.unauthenticated && response.authenticationURL) {
       return Promise.reject(window.location.href = response.authenticationURL)
-    } else {
-      if (response.ok && response.isTurboStream) { response.renderTurboStream() }
-      return response
     }
+
+    if (response.ok && response.isTurboStream) { response.renderTurboStream() }
+    return response
   }
 
   get fetchOptions () {
@@ -52,9 +53,9 @@ export class FetchRequest {
       return undefined
     } else if (this.body instanceof window.File) {
       return this.body.type
-    } else {
-      return 'application/json'
     }
+
+    return 'application/json'
   }
 
   get accept () {
@@ -89,12 +90,14 @@ export class FetchRequest {
 
 function compact (object) {
   const result = {}
+
   for (const key in object) {
     const value = object[key]
     if (value !== undefined) {
       result[key] = value
     }
   }
+
   return result
 }
 
diff --git a/src/fetch_response.js b/src/fetch_response.js
index 5587fad..6ae3b83 100644
--- a/src/fetch_response.js
+++ b/src/fetch_response.js
@@ -21,6 +21,7 @@ export class FetchResponse {
 
   get contentType () {
     const contentType = this.response.headers.get('Content-Type') || ''
+
     return contentType.replace(/;.*$/, '')
   }
 
@@ -31,17 +32,17 @@ export class FetchResponse {
   get html () {
     if (this.contentType.match(/^(application|text)\/(html|xhtml\+xml)$/)) {
       return this.response.text()
-    } else {
-      return Promise.reject(new Error(`Expected an HTML response but got "${this.contentType}" instead`))
     }
+
+    return Promise.reject(new Error(`Expected an HTML response but got "${this.contentType}" instead`))
   }
 
   get json () {
     if (this.contentType.match(/^application\/json/)) {
       return this.response.json()
-    } else {
-      return Promise.reject(new Error(`Expected a JSON response but got "${this.contentType}" instead`))
     }
+
+    return Promise.reject(new Error(`Expected a JSON response but got "${this.contentType}" instead`))
   }
 
   get text () {
@@ -59,8 +60,8 @@ export class FetchResponse {
       } else {
         console.warn('You must set `window.Turbo = Turbo` to automatically process Turbo Stream events with request.js')
       }
-    } else {
-      return Promise.reject(new Error(`Expected a Turbo Stream response but got "${this.contentType}" instead`))
     }
+
+    return Promise.reject(new Error(`Expected a Turbo Stream response but got "${this.contentType}" instead`))
   }
 }
diff --git a/src/lib/cookie.js b/src/lib/cookie.js
index c220a9a..95f2a10 100644
--- a/src/lib/cookie.js
+++ b/src/lib/cookie.js
@@ -5,6 +5,9 @@ export function getCookie (name) {
 
   if (cookie) {
     const value = cookie.split('=').slice(1).join('=')
-    return value ? decodeURIComponent(value) : undefined
+
+    if (value) {
+      return decodeURIComponent(value)
+    }
   }
 }