metamask - append dapp origin domain to rpc request

app/scripts/metamask-controller.js

@@ -184,7 +184,9 @@ module.exports = class MetamaskController extends EventEmitter {
         eth_syncing: false,
         web3_clientVersion: `MetaMask/v${version}`,
       },
+      // rpc data source
       rpcUrl: this.networkController.getCurrentRpcAddress(),
+      originHttpHeaderKey: 'X-Metamask-Origin',
       // account mgmt
       getAccounts: (cb) => {
         const isUnlocked = this.keyringController.memStore.getState().isUnlocked
@@ -356,8 +358,13 @@ module.exports = class MetamaskController extends EventEmitter {
   }
 
   setupProviderConnection (outStream, originDomain) {
-    streamIntoProvider(outStream, this.provider, logger)
-    function logger (err, request, response) {
+    streamIntoProvider(outStream, this.provider, onRequest, onResponse)
+    // append dapp origin domain to request
+    function onRequest (request) {
+      request.origin = originDomain
+    }
+    // log rpc activity
+    function onResponse (err, request, response) {
       if (err) return console.error(err)
       if (response.error) {
         console.error('Error in RPC response:\n', response.error)

package.json

@@ -124,8 +124,8 @@
     "valid-url": "^1.0.9",
     "vreme": "^3.0.2",
     "web3": "0.19.1",
-    "web3-provider-engine": "^13.0.3",
-    "web3-stream-provider": "^2.0.6",
+    "web3-provider-engine": "^13.1.1",
+    "web3-stream-provider": "^3.0.1",
     "xtend": "^4.0.1"
   },
   "devDependencies": {