CODEWITHSUNDEEP
coldfusion
Larsenal
Larsenal

Reputation: 51146

How do you clear the Response buffer in ColdFusion?

I'm looking for something like Response.Clear().

Upvotes: 8

Views: 5567

Answers (3)

Ryan Cogswell
Ryan Cogswell

Reputation: 80966

The two existing answers (<cfset GetPageContext().getCFOutput().clear()> and <cfcontent reset="true">) will reset the main content buffer, but those commands will not reset the header buffers (i.e. content that ColdFusion automatically inserts into the <head> element such as <script> tags when using <cfchart>).

To reset everything, you can use either of the following approaches:

<cfcontent reset="true" resethead="true">

or

<cfset getPageContext().getCFOutput().clearAll()>
<cfset getPageContext().getCFOutput().clearHeaderBuffers()>

These approaches are not documented (so possible to change in future version -- though unlikely) and these approaches are unlikely to be portable to other CFML engines, but I have not found any documented approach for clearing the header buffers.

Related answer: Is there a way to prevent cfchart from forcing js into response content?

Upvotes: 0

Edward M Smith
Edward M Smith

Reputation: 10627

You can reset the output buffer using the cfcontent tag with the reset argument:

<cfcontent reset="true">

Upvotes: 29

jfrobishow
jfrobishow

Reputation: 2895

This will clear the response body and prevent the output of buffered content -

<cfset GetPageContext().getCFOutput().clear()>

Upvotes: 12

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