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nitin029
Level 2
May 18, 2022
Solved

Clientlibs not getting minified in AEM 6.5.6

  • May 18, 2022
  • 3 replies
  • 4968 views

The .min.js extension is getting added to the client library , but the js files are not minified.
AEM version: 6.5 and service pack version is 6.5.6.
In OSGI config HTML client library manager, minify option is already enabled with jsProcessor= min:gcc 

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Best answer by joerghoh

Can you elaborate on the Frontend build process please


The standard AEM archetype provides a pre-defined structure for the frontend build already, see https://experienceleague.adobe.com/docs/experience-manager-core-components/using/developing/archetype/using.html?lang=en#what-you-get

 

specifically the modules "ui.frontend.general", "ui.frontend.react" and "ui.frontend.angular"

3 replies

DEBAL_DAS
DEBAL_DAS
New Member
May 18, 2022

Steps:1

Please check error.log file there you might see some error associated with that clientlib.

When I had issue with minification , I saw error message in error.log file and then I took necessary steps to fix.

 

Step:2

To troubleshoot the issue please follow the below steps   -

 

a. AEM 6.5 uses following closure-compiler-v20190121.jar for js minification, also highlighted in below screenshot -

 

b. If we take a closure look , we could see com.google.javascript is part of this closure compiler bundle.

c. Next you  can download the bundle:closure-compiler-v20190121.jar from aeminstance\crx-quickstart\launchpad\felix\bundle290\version0.0\bundle.jar-embedded. Bundle ID may vary in your case-

 

d. To understand the minification issue , you can execute below command to compile the Javascript file -

     java -jar compiler.jar --js hello.js --js_output_file hello-compiled.js

[https://developers.google.com/closure/compiler/docs/gettingstarted_app]

It may throw error during compilation and it will help you why minification isn't working.

 

 

 

Debal Das, Senior AEM Consultant
    N
    nitin029Author
    Level 2
    May 18, 2022

    Hi @debal_das , this is the error that is coming in the logs:

    18.05.2022 13:49:18.996 *ERROR* [0:0:0:0:0:0:0:1 [1652861958525] GET /etc.clientlibs/deg/clientlibs/clientlib-base.min.js HTTP/1.1] com.google.javascript.jscomp /apps/deg/clientlibs/clientlib-base.js:849: ERROR - This language feature is only supported for ECMASCRIPT6 mode or better: block-scoped function declaration.
    function checkDOMChangeLogin()
    ^

    There were other errors regarding the usage of let keyword which I already have neutralized. But this is the only error coming up now.
    Any suggestions on how to neutralize this one?

    Thanks

      DEBAL_DAS
      DEBAL_DAS
      New Member
      May 18, 2022

      You can give a try by adding either one of the below option in that clientlibrary folder: 

      a.

      jsProcessor=[min:gcc;languageIn=ECMASCRIPT_2016;languageOut=ECMASCRIPT_2016;compilationLevel=simple;obfuscate=true]

      b.

       jsProcessor=[min:gcc;obfuscate=true;languageIn=ECMASCRIPT_2019;languageOut=ECMASCRIPT3]

       

       

      One more request please talk to your Front End developers and Front End architect about this error, if they could fix this issue at code level.

      Debal Das, Senior AEM Consultant
        joerghoh
        Adobe Employee
        joerghohAdobe Employee
        Adobe Employee
        May 18, 2022

        I would do the minification outside as part of the Frontend build process; I would not rely on the AEM features, because there are better ways and tools to do so.

         

        (Note: hearsay, I am not a frontend engineer)

          DEBAL_DAS
          DEBAL_DAS
          New Member
          May 19, 2022

          Yes @joerghoh , in our current and last project minification is part of Frontend build process.

          Debal Das, Senior AEM Consultant
            N
            nitin029Author
            Level 2
            May 19, 2022

            Can you elaborate on the Frontend build process please

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