[jira] [Updated] (TC-309) No Cache-Control on images

["Hank Beatty (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TC-309?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hank Beatty updated TC-309:
---------------------------
    Issue Type: Improvement  (was: Bug)

> No Cache-Control on images
> --------------------------
>
>                 Key: TC-309
>                 URL: https://issues.apache.org/jira/browse/TC-309
>             Project: Traffic Control
>          Issue Type: Improvement
>          Components: Traffic Ops
>            Reporter: Steve Malenfant
>            Priority: Trivial
>              Labels: cache-control
>
> From GH issue #962:
> This was observed during 1.3.0RC6 testing. The headers are different in 1.1.6 (actually not cache-control headers).
> Images didn't show up sometimes, high latency to display the Health->Table View.
> Is this a byproduct of using localhost connection (through Vagrant) ?
> But doesn't seems like this code changed along the way...
> {code}
> Request URL:https://127.0.0.1:4443/images/graph.png
> Request Method:GET
> Status Code:200 OK
> Remote Address:127.0.0.1:4443
> Response Headers
> view source
> Accept-Ranges:bytes
> Access-Control-Allow-Credentials:true
> Access-Control-Allow-Headers:Origin, X-Requested-With, Content-Type, Accept
> Access-Control-Allow-Methods:POST,GET,OPTIONS,PUT,DELETE
> Access-Control-Allow-Origin:http://localhost:8080
> Cache-Control:no-cache, no-store, max-age=0, must-revalidate
> Connection:keep-alive
> Content-Length:892
> Content-Type:image/png
> Date:Fri, 22 Jan 2016 15:03:36 GMT
> Last-Modified:Fri, 22 Jan 2016 13:14:28 GMT
> Server:Mojolicious (Perl)
> {code}
> Logs
> {code}
> 10.0.2.2 - - [22/Jan/2016:15:11:55 +0000] "GET /api/1.1/traffic_monitor/stats.json?data_type=json HTTP/1.1" 200 73
> 10.0.2.2 - - [22/Jan/2016:15:11:55 +0000] "GET /images/good.png HTTP/1.1" 200 617
> 10.0.2.2 - - [22/Jan/2016:15:11:55 +0000] "GET /images/graph.png HTTP/1.1" 200 892
> 10.0.2.2 - - [22/Jan/2016:15:12:00 +0000] "GET /api/1.1/traffic_monitor/stats.json?data_type=json HTTP/1.1" 200 73
> 10.0.2.2 - - [22/Jan/2016:15:12:02 +0000] "GET /api/1.1/traffic_monitor/stats.json?data_type=json HTTP/1.1" 200 73
> 10.0.2.2 - - [22/Jan/2016:15:12:02 +0000] "GET /images/good.png HTTP/1.1" 200 617
> 10.0.2.2 - - [22/Jan/2016:15:12:02 +0000] "GET /images/graph.png HTTP/1.1" 200 892
> {code}
> By default, the cdn.conf contains an entry showing
> {code}
>   cors => {
>     access_control_allow_origin => 'http://localhost:8080'
>   },
> {code}
> Comment those lines and this will disable the Cache-Control headers for all files. Use only if you are not going through a proxy. Enjoy the fast UI again.
> The Cache Control should be changed for static files. These should probably be set to something like max-age=86400. When doing development, these should be disabled so one doesn't get frustrated not seeing updates made...
> {code}
> /opt/traffic_ops/app/public/css
> /opt/traffic_ops/app/public/images
> /opt/traffic_ops/app/public/js
> /opt/traffic_ops/app/public/theme
> {code}



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