diff --git a/packages/ui/client/composables/client/static.ts b/packages/ui/client/composables/client/static.ts
index fb839d0fdba5..24156a30507b 100644
--- a/packages/ui/client/composables/client/static.ts
+++ b/packages/ui/client/composables/client/static.ts
@@ -98,18 +98,9 @@ export function createStaticClient(): VitestClient {
 
   async function registerMetadata() {
     const res = await fetch(window.METADATA_PATH!)
-    const contentType = res.headers.get('content-type')?.toLowerCase() || ''
-    if (
-      contentType.includes('application/gzip')
-      || contentType.includes('application/x-gzip')
-    ) {
-      const compressed = new Uint8Array(await res.arrayBuffer())
-      const decompressed = strFromU8(decompressSync(compressed))
-      metadata = parse(decompressed) as HTMLReportMetadata
-    }
-    else {
-      metadata = parse(await res.text()) as HTMLReportMetadata
-    }
+    const compressed = new Uint8Array(await res.arrayBuffer())
+    const decompressed = strFromU8(decompressSync(compressed))
+    metadata = parse(decompressed) as HTMLReportMetadata
     const event = new Event('open')
     ctx.ws.dispatchEvent(event)
   }
diff --git a/packages/ui/node/reporter.ts b/packages/ui/node/reporter.ts
index dbc9275db3d7..5b6c74bd71fa 100644
--- a/packages/ui/node/reporter.ts
+++ b/packages/ui/node/reporter.ts
@@ -162,7 +162,7 @@ export default class HTMLReporter implements Reporter {
   }
 
   async writeReport(report: string): Promise<void> {
-    const metaFile = resolve(this.reporterDir, 'html.meta.json.gz')
+    const metaFile = resolve(this.reporterDir, 'html.meta.bin')
 
     const promiseGzip = promisify(gzip)
     const data = await promiseGzip(report, {
diff --git a/packages/ui/vite.config.ts b/packages/ui/vite.config.ts
index 3cc665d84922..0b15da850462 100644
--- a/packages/ui/vite.config.ts
+++ b/packages/ui/vite.config.ts
@@ -60,7 +60,7 @@ export default defineConfig({
     //   name: 'debug-html-report',
     //   apply: 'serve',
     //   transformIndexHtml(html) {
-    //     return html.replace('<!-- !LOAD_METADATA! -->', `<script>window.METADATA_PATH="${debugLink}/html.meta.json.gz"</script>`)
+    //     return html.replace('<!-- !LOAD_METADATA! -->', `<script>window.METADATA_PATH="${debugLink}/html.meta.bin"</script>`)
     //   },
     // },
 
diff --git a/test/reporters/tests/html.test.ts b/test/reporters/tests/html.test.ts
index 86ae382d417d..cc4417808361 100644
--- a/test/reporters/tests/html.test.ts
+++ b/test/reporters/tests/html.test.ts
@@ -25,7 +25,7 @@ describe('html reporter', async () => {
 
     expect(stderr).toBe('')
 
-    const metaJsonGzipped = fs.readFileSync(resolve(root, `${basePath}/html.meta.json.gz`))
+    const metaJsonGzipped = fs.readFileSync(resolve(root, `${basePath}/html.meta.bin`))
     const metaJson = zlib.gunzipSync(metaJsonGzipped).toString('utf-8')
     const indexHtml = fs.readFileSync(resolve(root, `${basePath}/index.html`), { encoding: 'utf-8' })
     const resultJson = parse(metaJson.replace(new RegExp(vitestRoot, 'g'), '<rootDir>'))
@@ -50,7 +50,7 @@ describe('html reporter', async () => {
     expect(task.result.logs).not.toBeDefined()
 
     expect(resultJson).toMatchSnapshot(`tests are passing`)
-    expect(indexHtml).toMatch('window.METADATA_PATH="html.meta.json.gz"')
+    expect(indexHtml).toMatch('window.METADATA_PATH="html.meta.bin"')
   }, 120000)
 
   it('resolves to "failing" status for test file "json-fail"', async () => {
@@ -68,7 +68,7 @@ describe('html reporter', async () => {
 
     expect(stderr).toBe('')
 
-    const metaJsonGzipped = fs.readFileSync(resolve(root, `${basePath}/html.meta.json.gz`))
+    const metaJsonGzipped = fs.readFileSync(resolve(root, `${basePath}/html.meta.bin`))
     const metaJson = zlib.gunzipSync(metaJsonGzipped).toString('utf-8')
     const indexHtml = fs.readFileSync(resolve(root, `${basePath}/index.html`), { encoding: 'utf-8' })
     const resultJson = parse(metaJson.replace(new RegExp(vitestRoot, 'g'), '<rootDir>'))
@@ -97,7 +97,7 @@ describe('html reporter', async () => {
     task.logs[0].time = 0
 
     expect(resultJson).toMatchSnapshot(`tests are failing`)
-    expect(indexHtml).toMatch('window.METADATA_PATH="html.meta.json.gz"')
+    expect(indexHtml).toMatch('window.METADATA_PATH="html.meta.bin"')
   }, 120000)
 })