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Is it possible to defer or async JS in ClientLibs (AEM 6.1, using JSP)?

theo_nicolaou
Level 2
Level 2

Hi,

Is it possible to defer or call ClientLibs asynchronously in AEM 6.1? So, something like: <cq:includeClientLib js="cq.jquery" async /> or <cq:includeClientLib js="cq.jquery" defer /> ? I have found examples using Sightly in AEM 6.2 but no luck finding examples using JSP's.

Any help appreciated.

Thanks

Theo

0 Replies
smacdonald2008
Level 10
Level 10

No - its loaded when the script that contains the clientlib is loaded. There is no OOTB setting that delays loading a clientlib. 

Now you can do it with JS itself -- see 

http://stackoverflow.com/questions/9611714/delay-script-loading

Hope this helps. 

theo_nicolaou
Level 2
Level 2

Hi,

Are there any plans in future AEM versions to allow this? I have seen that you can do it with Sightly in AEM 6.2 but we are using JSP's

Thanks

Theo

leeasling
Level 8
Level 8

I don't believe Adobe is putting any attention on improving support for JSP beyond what's already in place.  Sightly is the new standard so it may be worth implementing the component you need this functionality in with Sightly rather than JSP.

smacdonald2008
Level 10
Level 10

I do not believe so - any dev effort will go into HTL as they are focusing on TOuch UI and HTL. 

edubey
Level 10
Level 10

If you want this feature from OOTB AEM? - Not supported

But you can follow approach mentioned here for these attributes

GitHub - nateyolles/aem-clientlib-async: Create AEM clientlibs that can output 'async', 'defer' and ...