fix: drop global flag from html-detecting regexp

Author: gtramontina

src/index.ts

@@ -8,7 +8,7 @@ const { compile } = require('@kitajs/html')
 
 import './declaration'
 
-const isHTMLRegex = /<[^>]*>/g
+const isHTMLRegex = /<[^>]*>/
 const isHTML = isHTMLRegex.test.bind(isHTMLRegex)
 
 export const html = () =>

test/index.test.ts

@@ -49,4 +49,15 @@ describe('HTML', () => {
         const res = await app.handle(req('/'))
         expect(res.headers.get('Content-type')).toContain('text/html; charset=utf8')
     })
+
+    it('consistently identifies html content', async () => {
+        const app = new Elysia().use(html()).get('/', () => `<h1>Hi</h1>`)
+
+        let res = await app.handle(req('/'))
+        expect(res.headers.get('Content-type')).toContain('text/html; charset=utf8')
+        res = await app.handle(req('/'))
+        expect(res.headers.get('Content-type')).toContain('text/html; charset=utf8')
+        res = await app.handle(req('/'))
+        expect(res.headers.get('Content-type')).toContain('text/html; charset=utf8')
+    })
 })