Send2CRM Website Client v1.21 Technical Notes

Release	v1.21
Date	Aug 21, 2025
Version	Send2CRM Website Client v1.21
Description	Cross-domain sync, back-end operation, minor fixes.

Issue	Implementation notes

Issue	Implementation notes
DEV-292	Website client now correctly loads and parses the DOM even if delayed until after page load. Note this configuration is not recommended.
DEV-258	Added Subresource Integrity (SRI) hash verification option for website client script delivery.
DEV-248	Errors no longer thrown when session operations are attempted during a storage sync between multiple tabs/windows.
DEV-235	Web worker and backend operation now supported by client script: Headless Operation
DEV-233	Applied explicit polyfill settings for web browser support.
DEV-225	Cross-domain sync now directly supported via <iframe> elements: Cross-Domain Sync
DEV-135	Automatically-processed form submissions are now explicitly halted when validation errors are present.
DEV-11	Made visitor object directly accessible via `send2crm.visitor` property.