How tool inputs are handled.
The QR engine runs on the server, so generation requires a live connection.
QR generation
When you generate a QR code, the values entered in the QR form are sent to the pevlika.com server so the server can create the requested SVG or PNG. The application code does not write submitted QR content to a database or application log.
Transport and storage
Deploy the production service over HTTPS. The application serves pages and API responses with Cache-Control: no-store and does not include the QR generation library in browser code. A saved page therefore cannot perform QR generation without the live service.
Operational metadata
Normal infrastructure may still record operational metadata such as request time, IP address, route, status code or user agent depending on the hosting and reverse-proxy configuration. Request bodies should not be logged at the infrastructure layer if sensitive QR modes such as Wi-Fi are offered.
Analytics
The interface exposes product events through dataLayer. Connect an analytics provider only after deciding what fields are appropriate to collect. QR payload values should not be included in analytics events.