@Override
    public String getFlowId(final HttpServletRequest request) {
        var flowId = super.getFlowId(request);
        if (flowId.contains("#")) {
            flowId = RegExUtils.removePattern(flowId, "#.*");
        }
        for (val flowIdExtractor : flowIdExtractors) {
            flowId = flowIdExtractor.extract(request, flowId);
        }
        return flowId.trim();
    }
Default flow execution key parameter name, {@value}.
Same as that used by {@link DefaultFlowUrlHandler}.
core/cas-server-core-webflow-api/src/main/java/org/apereo/cas/web/flow/CasDefaultFlowUrlHandler.java