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https://issues.apache.org/jira/browse/TAP5-73?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12659433#action_12659433
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Martin Reurings commented on TAP5-73:
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A built-in feature set such as this has the potential of a negative effect on
real high-performance websites:
- Packing Javascripts may cause scripts that could have been cached client-side
to get reloaded numerous times.
- Packing Javascripts may cause unneeded Javascript to get sent (and parsed)
numerous times
- If T5 stays responsible for supplying what are essentially 'static' files
these cannot be served from a different server, which allows caching and could
have a different bandwidth allowance (this is already a problem and would get
even worse).
- Packed/Compressed Javascripts are almost impossible to debug properly.
I'm quite certainly missing some more negative side-effects, but these feel
likel enough to make my point. Features like these are great to have in a
framework, but must be disabled by default, in my humble opinion. Also, I have
to agree with some of the previous posters in stating, this should be fixed at
build-time not take CPU and memory at run-time.
> JavaScript libraries should be automatically packed/minimalized
> ---------------------------------------------------------------
>
> Key: TAP5-73
> URL: https://issues.apache.org/jira/browse/TAP5-73
> Project: Tapestry 5
> Issue Type: New Feature
> Affects Versions: 5.0.15
> Reporter: Howard M. Lewis Ship
>
> Tapestry should catch downloads of JavaScript libraries, and should "pack"
> the JavaScript ... remove comments and unecessary whitespace. I believe Dojo
> has a library to do this, it may even shorten variable names (!).
> A smart implementation of this would manage to cache the compressed JS, and
> notice when the uncompressed version changed.
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