1 files changed, 37 insertions, 17 deletions

diff --git a/client/public/mockServiceWorker.js b/client/public/mockServiceWorker.js
index 919d3e1..ec47a9a 100644
--- a/client/public/mockServiceWorker.js
+++ b/client/public/mockServiceWorker.js
@@ -2,13 +2,14 @@
 /* tslint:disable */
 
 /**
- * Mock Service Worker (2.2.1).
+ * Mock Service Worker.
  * @see https://github.com/mswjs/msw
  * - Please do NOT modify this file.
  * - Please do NOT serve this file on production.
  */
 
-const INTEGRITY_CHECKSUM = '223d191a56023cd36aa88c802961b911'
+const PACKAGE_VERSION = '2.7.0'
+const INTEGRITY_CHECKSUM = '00729d72e3b82faf54ca8b9621dbb96f'
 const IS_MOCKED_RESPONSE = Symbol('isMockedResponse')
 const activeClientIds = new Set()
 
@@ -48,7 +49,10 @@ self.addEventListener('message', async function (event) {
     case 'INTEGRITY_CHECK_REQUEST': {
       sendToClient(client, {
         type: 'INTEGRITY_CHECK_RESPONSE',
-        payload: INTEGRITY_CHECKSUM,
+        payload: {
+          packageVersion: PACKAGE_VERSION,
+          checksum: INTEGRITY_CHECKSUM,
+        },
       })
       break
     }
@@ -58,7 +62,12 @@ self.addEventListener('message', async function (event) {
 
       sendToClient(client, {
         type: 'MOCKING_ENABLED',
-        payload: true,
+        payload: {
+          client: {
+            id: client.id,
+            frameType: client.frameType,
+          },
+        },
       })
       break
     }
@@ -151,6 +160,10 @@ async function handleRequest(event, requestId) {
 async function resolveMainClient(event) {
   const client = await self.clients.get(event.clientId)
 
+  if (activeClientIds.has(event.clientId)) {
+    return client
+  }
+
   if (client?.frameType === 'top-level') {
     return client
   }
@@ -179,12 +192,26 @@ async function getResponse(event, client, requestId) {
   const requestClone = request.clone()
 
   function passthrough() {
-    const headers = Object.fromEntries(requestClone.headers.entries())
+    // Cast the request headers to a new Headers instance
+    // so the headers can be manipulated with.
+    const headers = new Headers(requestClone.headers)
+
+    // Remove the "accept" header value that marked this request as passthrough.
+    // This prevents request alteration and also keeps it compliant with the
+    // user-defined CORS policies.
+    const acceptHeader = headers.get('accept')
+    if (acceptHeader) {
+      const values = acceptHeader.split(',').map((value) => value.trim())
+      const filteredValues = values.filter(
+        (value) => value !== 'msw/passthrough',
+      )
 
-    // Remove internal MSW request header so the passthrough request
-    // complies with any potential CORS preflight checks on the server.
-    // Some servers forbid unknown request headers.
-    delete headers['x-msw-intention']
+      if (filteredValues.length > 0) {
+        headers.set('accept', filteredValues.join(', '))
+      } else {
+        headers.delete('accept')
+      }
+    }
 
     return fetch(requestClone, { headers })
   }
@@ -202,13 +229,6 @@ async function getResponse(event, client, requestId) {
     return passthrough()
   }
 
-  // Bypass requests with the explicit bypass header.
-  // Such requests can be issued by "ctx.fetch()".
-  const mswIntention = request.headers.get('x-msw-intention')
-  if (['bypass', 'passthrough'].includes(mswIntention)) {
-    return passthrough()
-  }
-
   // Notify the client that a request has been intercepted.
   const requestBuffer = await request.arrayBuffer()
   const clientMessage = await sendToClient(
@@ -240,7 +260,7 @@ async function getResponse(event, client, requestId) {
       return respondWithMock(clientMessage.data)
     }
 
-    case 'MOCK_NOT_FOUND': {
+    case 'PASSTHROUGH': {
       return passthrough()
     }
   }