Fix uncontrolled crash when "this.uri" is an invalid URI

main.js

@@ -154,6 +154,21 @@ Request.prototype.init = function (options) {
     }
   }
 
+  if (!self.uri.host || !self.uri.pathname) {
+    // Invalid URI: it may generate lot of bad errors, like "TypeError: Cannot call method 'indexOf' of undefined" in CookieJar
+    // Detect and reject it as soon as possible
+    var faultyUri = url.format(self.uri)
+    var message = 'Invalid URI "' + faultyUri + '"'
+    if (Object.keys(options).length === 0) {
+      // No option ? This can be the sign of a redirect
+      // As this is a case where the user cannot do anything (he didn't call request directly with this URL)
+      // he should be warned that it can be caused by a redirection (can save some hair)
+      message += '. This can be caused by a crappy redirection.'
+    }
+    self.emit('error', new Error(message))
+    return // This error was fatal
+  }
+
   self._redirectsFollowed = self._redirectsFollowed || 0
   self.maxRedirects = (self.maxRedirects !== undefined) ? self.maxRedirects : 10
   self.followRedirect = (self.followRedirect !== undefined) ? self.followRedirect : true