fix(devtools): patch webrequest to fix devtools

Fix an incompatibility between electron 2.x and devtools by patching the
electron webRequest handler.

See https://github.com/electron/electron/issues/13008#issuecomment-400261941

Fix #490

app/main.dev.js

@@ -10,7 +10,7 @@
  *
  *
  */
-import { app, BrowserWindow, ipcMain, dialog } from 'electron'
+import { app, BrowserWindow, ipcMain, dialog, session } from 'electron'
 import path from 'path'
 import fs from 'fs'
 import split2 from 'split2'
@@ -343,6 +343,21 @@ app.on('ready', async () => {
       mainWindow.webContents.send('successfullyCreatedWallet')
     }
   })
+
+  // HACK: patch webrequest to fix devtools incompatibility with electron 2.x.
+  // See https://github.com/electron/electron/issues/13008#issuecomment-400261941
+  session.defaultSession.webRequest.onBeforeRequest({}, (details, callback) => {
+    if (details.url.indexOf('hack') !== -1) {
+      callback({
+        redirectURL: details.url.replace(
+          '7accc8730b0f99b5e7c0702ea89d1fa7c17bfe33',
+          '57c9d07b416b5a2ea23d28247300e4af36329bdc'
+        )
+      })
+    } else {
+      callback({ cancel: false })
+    }
+  })
 })
 
 app.setAsDefaultProtocolClient('lightning')