fix: code tweaks for rn

Author: hugomrdias

test/http.spec.js

@@ -160,6 +160,9 @@ describe('http', function () {
     const body = new Uint8Array(1000000 / 2)
     const request = await HTTP.post(`${ECHO_SERVER}/echo`, {
       body,
+      headers: {
+        'Content-Type': 'application/octet-stream'
+      },
       onUploadProgress: (progress) => {
         expect(progress).to.have.property('lengthComputable').to.be.a('boolean')
         expect(progress).to.have.property('total', body.byteLength)

test/text-codec.spec.js

@@ -6,7 +6,7 @@ const TextEncoder = require('../src/text-encoder')
 const TextDecoder = require('../src/text-decoder')
 
 describe('text encode/decode', () => {
-  const data = Uint8Array.from([
+  const data = new Uint8Array([
     104,
     101,
     108,