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Support Article

Mashup: Custom parameters sent in lower case



Mashup issue with custom parameter names defined as DIV attributes using syntax like PegaA_<ParamName> results in a URL generated with paramname=<value>.

The parameters are passed in lower case when user uses Internet Explorer running in Edge mode.

The custom Mashup parameters are passed with mixed case when using older Quirks mode.

Parameter names within PRPC activity processing and so on are case sensitive.

Error Messages

None, parameters are simply sent in lower case instead of mixed case.

Steps to Reproduce

Mashup using custom parameters defined as PegaA_<ParamName> using mixed case.

Root Cause

To process custom parameters defined as DIV attributes user is simply looping through the DIV attribute array.

When using Internet Explorer in Edge mode the HTML standards have changed and DIV attribute names are normalized to lower case.

When building the URL for the Mashup iFrame the parameter names added are in lower case because that is how the browser is providing the names to us. One can remove the "PegaA_".

The same is true for Chrome, Firefox, Safari browsers.


Here's the explanation for the behavior:

Do not use PegaA_<ParamName>. Instead put parameters inside PegaA_Params or for later releases of PRPC "data-pega-action-param-parameters". This will maintain the mixed case of parameter names when generating the URL for the Mashup iFrame.

Suggest Edit

Published December 15, 2017 - Updated October 8, 2020

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