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JSON webhandler returned twice in 11.7.6 when using WebResponseWriter’s Write() methods

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TitleJSON webhandler returned twice in 11.7.6 when using WebResponseWriter’s Write() methods
URL Namejson-webhandler-returned-twice-in-11-7-6-when-using-webresponsewriter-s-write-methods
Article Number000193846
EnvironmentProduct: OpenEdge
Version: 11.7.6, 12.x
OS: All supported platforms
Other: PASOE
Question/Problem Description
JSON webhandler returned twice in 11.7.6 when using WebResponseWriter’s Write() methods
JSON result is returned twice in when using WebResponseWriter's Write() methods.
Steps to Reproducecreate a PASOE instance, define a webhandler on the ROOT-webapp
use WebResponseWriter’s Write() methods:

//pseudo-code
def var resp as IHttpResponse. 
def var wrw as WebResponseWriter. 

resp = new WebResponse().
resp:Entity = new String('about to be duplicated').
resp:ContentType = 'text/plain'.

wrw = new WebResponseWrite(resp).
wrw:Open().
// writes the string
wrw:Write(resp:Entity).
// ALSO writes the string
wrw:Close().
Clarifying Information
Issue does not occur in OpenEdge 11.7.5
Error Message
Defect NumberOCTA-22583
Enhancement Number
Cause
Issue was introduced when fixing the issue OCTA-18159 where the WebResponseWriter omits closing Json tags when data contains no-break space:  WebResponseWriter returns invalid Json if data contains A0
Resolution
Upgrade to OpenEdge Release 11.7.7, 12.3 or later, where OCTA-22583 is fixed.
Workaround
Notes
Last Modified Date6/3/2021 10:13 AM
Attachment 
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