Cache issue of CSS & JS file.

Search for file "th-product-review.liquid" in Admin code. When you open this file you will see CSS & JS file, Whenever you update the CSS or JS file at that moment you need to pass a random number as a parameter as shown in the after changes image.

 For example: 
{{ '//thimatic-apps.com/product_review/theme_files/wc-review.css?v=1' | stylesheet_tag }}
{{ '//thimatic-apps.com/product_review/theme_files/wc-product-review.js?v=9898' | script_tag }}<br>

Default Code before changes:

Code  after changes:

Note: Whenever a single change made in these CSS or JS file then must change the value of the passed parameter.