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Bypass GZip compression for a specific page

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Imar Spaanjaars Dynamicweb Employee
Imar Spaanjaars
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Posted on 19/02/2019 16:53:01

Hi there,

I have a page based on an item with a custom Razor template that outputs data as a CSV file (along with the appropriate header and such). I also have GZip compression turned on in the Settings area. When GZip is turned on, my CSV becomes much like a ZIP file. When I download it, and rename it to zip, I can look into it and see my CSV file / data.

How do I prevent GZip compression from happening on this page only without turning it off for the rest of the site? 

Thanks!

Imar


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Nicolai Pedersen
Posted on 19/02/2019 19:24:57
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You set a response type on the page properties - that will disable compression for a given page.

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Imar Spaanjaars Dynamicweb Employee
Imar Spaanjaars
Posted on 19/02/2019 20:43:16
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Yeah, I tried that already, but it doesn't make a difference on either 9.5 or 9.6. You can check it out here if you want: http://dev-rizzo.dw-demo.com The page is at the bottom: Data lists | Test (ID 186). It used a template called DownloadDataList.cshtml to match an item type called DownloadDataList. The template calls a component to get the CSV and then streams it back to the browser. It works with GZip off under Settings, but when I turn it on I get a zip-ish file, regardless of the content type setting...

 
Nicolai Pedersen
Posted on 19/02/2019 22:19:28
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Hm, can see that the conditional for that is no longer existing. Just re-implemented it.

Anyways it should be possible to send csv files as gzip. Do you maybe have a gzip directive in web.config for the response type that ends up with double gzip?

BR Nicolai

 
Imar Spaanjaars Dynamicweb Employee
Imar Spaanjaars
Posted on 20/02/2019 13:03:37
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This post has been marked as an answer

The only GZip related stuff in web.config is whatever comes from the standard application's config file. I took it out but it made no difference.

I worked around it for now by setting the Response.Filter to null after it's been set in PageView:

response.Filter = null; // Clear out Dynamicweb;'s GZip compression

Thanks!

Votes for this answer: 1

 

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