Avoid caching URLs with query paramters

[#1]

Hello Community - I have a page with dynamic content. Based on the results from the below URLs(with query string), the content is getting displayed on the page (www.test.com/products.html) and it is working fine in author, publish and dispatcher.

https://www.test.com/pages/_jcr_content.product.json?t=2011233&Tags=abc&Order=existing

https://www.test.com/pages/_jcr_content.product.json?t=2034567&Tags=def&Order=existing

https://www.test.com/pages/_jcr_content.product.json?t=2912345&Tags=ghi&Order=existing

https://www.test.com/pages/_jcr_content.product.json?t=2983456&Tags=jkl&Order=existing

If I directly access the page (CDN), the URL with query parameter is getting cached,  i.e., I see the same content for all four sections of the page. We need to restrict the URLs with the query parameters to be cached, the results should display different results as the query parameters are different and it should not be cached.

https://www.test.com/pages/_jcr_content.product.json?t=2983456&Tags=jkl&Order=existing

https://www.test.com/pages/_jcr_content.product.json?t=2983456&Tags=jkl&Order=existing

https://www.test.com/pages/_jcr_content.product.json?t=2983456&Tags=jkl&Order=existing

https://www.test.com/pages/_jcr_content.product.json?t=2983456&Tags=jkl&Order=existing

[viki1101]

Hi @viki1101,

Check if ignore query string is enabled at CDN caching level, this might be the reason these JSON response are not getting cached when its accessed using dispatcher url & getting cached when its accessed using CDN website url. another option is, you can set below mentioned response header in backend servlet so that this response will not cached.

response.addHeader("Cache-Control","no-store no-cache");

[viki1101]

Thanks @Manjunathh for the response. Will check the config in CDN level. In my case, the call to the servlet is having the same URL(with query string) and that is the reason I am seeing the same content. I don't think setting the option in servlet (response,addHeader) will solve my issue.

[Manjunathh]

Hi @viki1101 

Though call to the servlet is having the same URL(with query string), adding below header in response header will make sure the particular response is not stored in any cache. but normally will go with this setting response header approach when we have some performance use case where we need cache some request & some request should not be cached. so, first check if ignore query string enabled at CDN caching level & if still root cause not found setting this response header will be alternate approach.

response.addHeader("Cache-Control","no-store no-cache");