This feature is available with Silk Performer 21 and newer:
There are many websites that can no longer be run in Internet Explorer. Silk Performer 21 allows users to now record Browser Driven Monitors (BDM/AJAX) using the following web browsers:
FireFox
Chrome
Edge
Opera
Below is a link where Silk Performer can be downloaded:
ftp://ftp.bmc.com/pub/APM_HOTFIX/TEA-AGENT/Silk21_8897/
This location also contains a patch for the Transaction Execution Adapter (TEA) Agent (11.3.03.02) that will allow the 11.3.03 TEA Agent to run synthetic scripts created in Silk Performer 21. Please review the ReadMeFirst.doc file to learn how to install these new products.
With Silk Performer version 20.0 and earlier, it is not possible to record a Web Browser-Driven (AJAX) script using Chrome. The only web browser that can record AJAX scripts is Internet Explorer.
Below are links to MICROFOCUS's documentation and a video stating that Web Browser-Driven (AJAX) scripts have to be recorded with Internet Explorer:
https://www.microfocus.com/documentation/silk-performer/195/en/silkperformer-195-webhelp-en/GUID-B08937CC-E427-4402-B7A8-6CB1C8E4A47E.html
"Silk Performer uses Internet Explorer to record browser-driven scripts."
https://www.microfocus.com/documentation/silk-performer/190/en/silkperformer-190-bdlttutorial-en.pdf
" With the browser-driven load testing support, Silk Performer strives to offer the same functionality and behavior across all supported browsers. This makes it possible to record your scripts in the Internet Explorer-based Browser Application and replay them with Firefox and Chrome."
https://www.youtube.com/watch?v=iAStyDXClyI
MICROFOCUS' video explaining how to create an AJAX script using Internet Explorer
NOTE (Applies to all versions of Silk Performer):
If the following error is returned on playback of a script in Chrome:
BrowserStart(BrowserEngine: 38 - Unsupported browser version, The used browser version is not officially supported. The latest supported version is xx.)
Please refer to Knowledge Article (KA) -
https://bmcsites.force.com/casemgmt/sc_KnowledgeArticle?sfdcid=kA33n000000YLFFCA4&type=Solution