Chunks are not gzipped in production

[mwawrusch]

When using lazy loading modules the resulting chunks (like 0.59ea61d3b756000074ac.chunk.js ) are not gzipped.

1. OS? Windows 7, 8 or 10. Linux (which distribution). Mac OSX (Yosemite? El Capitan?)
   Yosemite
2. Versions. Please run ng --version. If there's nothing outputted, please run
   in a Terminal: node --version and paste the result here:

angular-cli: 1.0.0-beta.15
node: 6.1.0
os: darwin x64

1. Repro steps. Was this an app that wasn't created using the CLI? What change did you
   do on your code? etc.

Create an app with a lazy loaded module. run ng build --prod

1. The log given by the failure. Normally this include a stack trace and some
   more information.

n/a

1. Mention any other details that might be useful.

n/a

[mrgoos]

Could be duplicate of #2028?

[mwawrusch]

@mrgoos I think it's different, after further investigation I noticed that some chunks are gzipped, others not

-rw-r--r--   1 mwawrusch  staff     2981 Sep 25 05:58 0.59ea61d3b756000074ac.chunk.js
-rw-r--r--   1 mwawrusch  staff    57620 Sep 25 05:58 012cf6a10129e2275d79d6adac7f3b02.woff
-rw-r--r--   1 mwawrusch  staff   742949 Sep 25 05:58 054fa50baa6598a7bf0c6deec135d3a4.svg
-rw-r--r--   1 mwawrusch  staff   183252 Sep 25 05:58 056caeabe95749fe2b973bb9a0cd0776.ttf
-rw-r--r--   1 mwawrusch  staff    89432 Sep 25 05:58 081b11ebaca8ad30fd092e01451015dc.woff
-rw-r--r--   1 mwawrusch  staff    39810 Sep 25 05:58 1.42dcada3952637b70f07.chunk.js
-rw-r--r--   1 mwawrusch  staff    12614 Sep 25 05:58 1.42dcada3952637b70f07.chunk.js.gz
-rw-r--r--   1 mwawrusch  staff   185004 Sep 25 05:58 11b5cc9584f2c007a22966a031ead20e.ttf
-rw-r--r--   1 mwawrusch  staff    21893 Sep 25 05:58 183079184d96a491f16e3cc70414975d.eot
-rw-r--r--   1 mwawrusch  staff   767510 Sep 25 05:58 1a9e39e536aed26b863b243e68f97e3a.svg
-rw-r--r--   1 mwawrusch  staff   776042 Sep 25 05:58 1f37c7545ae9f63d2279f99875678396.svg
-rw-r--r--   1 mwawrusch  staff    17374 Sep 25 05:58 2.ff4ce882dc16f9a25557.chunk.js
-rw-r--r--   1 mwawrusch  staff     6098 Sep 25 05:58 2.ff4ce882dc16f9a25557.chunk.js.gz

[deebloo]

@mwawrusch I think this may be down to how large the chunks are. I know that there is a threshold where compressing the file will actually hurt performance. I would check and see how large the chunks are and see if they are gzipped as they get bigger.

[mwawrusch]

That seems like a reasonable assumption, as only the smaller files are kept unzipped.
I propose to always zip files or to expose the zip threshold.

[filipesilva]

Closing as dupe of #2028, better to keep gzip discussion there.

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