Rails how to Gzip Javascript? (Heroku)

Question

I have run google page speed and it is saying that I should Gzip my javascript files?

How do I gzip my javascript files? My website is hosted on heroku if that mattter

score 4 · Answer 1 · answered Jul 12 '11 at 21:19

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You can prezip your assets by using the jammit gem, running the jammit command before deploy, and uploading directly to heroku. Just make an config/assets.yml file, and then run "jammit"

http://documentcloud.github.com/jammit/

answered Jul 12 '11 at 21:19

noli

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score -2 · Answer 2 · answered Jul 12 '11 at 19:08

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As far as I understand it's web server's task to gzip files, I doubt you can modify heroku settings.

Besides, javascript files are usually cached by a browser, so normally it is not what you should be concerned about.

answered Jul 12 '11 at 19:08

Victor Moroz

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mu is too short · Accepted Answer · 2013-01-23T18:04:30.783

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This answer is out of date but I can't delete it because it was accepted. So I'm turning it into a community wiki so that people can fix it up.

Heroku should be gzipping everything automatically (as long as the client supports it of course). From an old blog post:

All apps deployed to Heroku automatically compress pages they serve, by virtue of passing through Nginx’s gzip filter on the way out.

And from the current documentation:

On the heroku.com HTTP stack, requests enter the platform through Nginx, which handles SSL and Gzip.

edited Jan 23 '13 at 18:04

answered Jul 12 '11 at 19:53

mu is too short

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This is no longer valid for the HerokuApp.com stack (notably: Celadon Cedar). Because requests are no longer run through a server like nginx, the application is responsible for compressing assets. http://devcenter.heroku.com/articles/http-routing#the_herokuappcom_http_stack – coreyward Dec 12 '11 at 20:17
@Corey: Thanks for the update, it is still valid for the the heroky.com stacks, right? – mu is too short Dec 13 '11 at 01:35
Yes, it's still valid for Aspen and Bamboo (anything with a .heroku.com domain). Heroku tries not to change anything on existing stacks, hence the creation of new stacks. – coreyward Dec 13 '11 at 18:47

Rails how to Gzip Javascript? (Heroku)

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