Make Webflow's form endpoint accept every submission, as it does for a working form: the runtime hides the form and shows its success message. Nothing leaves the browser. Give it before opening the page.
Examples
Given the webflow form endpoint accepts submissions
Given the form endpoint accepts submissions
Given the webflow forms endpoint accepts submissions
And the form endpoint accepts submissions
Given the webflow form endpoint accepts all submissions
Pattern
Given(/^the (?:webflow )?forms? endpoint accepts (?:all )?submissions$/, …)
Part of @webship-js/webflow-steps (github.com/webship/webflow-steps), a step pack for Webship-js 2.0.x.