[wp-trac] [WordPress Trac] #42815: Console js error while loading Customizer(Uncaught TypeError: Cannot read property 'action' of null)

[WordPress Trac]

#42815: Console js error while loading Customizer(Uncaught TypeError: Cannot read
property 'action' of null)
----------------------------+------------------------------
 Reporter:  coderarjun      |       Owner:
     Type:  defect (bug)    |      Status:  new
 Priority:  normal          |   Milestone:  Awaiting Review
Component:  Administration  |     Version:  4.9.1
 Severity:  normal          |  Resolution:
 Keywords:                  |     Focuses:
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Comment (by adamsilverstein):

 Hello @coderarjun - thanks for your bug report and welcome to WordPress
 trac!

 I tried to reproduce this locally and do not see the errors you mentioned.
 Do you get the errors right away on load?

 Can you please try accessing the customizer again with all plugins
 disabled and a default theme active? Also, please do a 'hard refresh'
 (shift + reload) to ensure you get fresh JavaScript  -sometimes these
 files can get cached by your browser and do odd things.

 Thanks.

 [[Image(https://cl.ly/3c0y3X1O3e2t/Customize_WordPress_Local_Development__Yes_Another_WordPress_site_2017-12-06_08-51-10.jpg)]]

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Ticket URL: <https://core.trac.wordpress.org/ticket/42815#comment:1>
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