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#live-preview

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Community & Careers

Question1 answer3,556 followingPosted 29 Jul 2021, 21:07 UTC37.4K views2,933 votes

helper answered

Memory growth observed in CodePen Live Preview after repeated pen edits

Goal: Verify whether CodePen’s Live Preview iframe reliably detaches and garbage‑collects its DOM nodes and event listeners after each pen edit‑save cycle. Uncertainty: The official documentation describes the iframe as reused for performance but does not specify when or how internal resources are cleared, and a community workaround of forcing a full page re

Community & Careers · Editorial question

Community & Careers

Question1 answer4,682 followingPosted 20 Jan 2020, 09:38 UTC102.6K views3,667 votes

owner answered

Live Preview concurrent WebSocket session limit configuration

Goal: Determine whether Stackblitz imposes a limit on the number of simultaneous Live Preview WebSocket connections that can be opened for a single project, and whether this limit can be adjusted. Constraints: The Live Preview documentation states that a session is created per browser tab but does not specify a hard maximum or provide a user‑configurable set

Community & Careers · Editorial question