Fix fetching log in firefox when Location header is unavailable

assets/scripts/app/models/log.coffee

@@ -64,7 +64,7 @@ Travis.Log.Request = Em.Object.extend
     endpoint = Travis.config.api_endpoint
     staging = if endpoint.match(/-staging/) then '-staging' else ''
     host = endpoint.replace(/^https?:\/\//, '').split('.').slice(-2).join('.')
-    "https://s3.amazonaws.com/archive#{staging}.#{host}#{path}/jobs/#{@id}/log.txt"
+    "https://s3.amazonaws.com/archive#{staging}.#{host}/jobs/#{@get('id')}/log.txt"
 
   isJson: (xhr, body) ->
     # Firefox can't see the Content-Type header on the xhr response due to the wrong

assets/scripts/spec/unit/log_request_spec.coffee

@@ -0,0 +1,6 @@
+describe 'Travis.Log.Request', ->
+  it 'constructs s3 url for log', ->
+    Travis.config.api_endpoint = 'api.travis-ci.org'
+    request = Travis.Log.Request.create(id: 10)
+    s3Url = "https://s3.amazonaws.com/archive.travis-ci.org/jobs/10/log.txt"
+    expect( request.s3Url() ).toEqual(s3Url)