Enable the expandable chat window
By default, a Web Chat widget opens at a fixed, compact size. Turning on Expandable chat window adds a control to the chat header that lets visitors enlarge the window for a roomier view, then shrink it back down.
What it does
When enabled, the widget header shows an expand button next to the other header controls. Clicking it:
- Enlarges the window to about 480px wide and 90% of the viewport height, leaving a small gap at the top.
- Clicking again (the shrink control) returns the window to its default size.
The enlarged size is always clamped to the visitor’s actual screen — it can never grow past the edges of the viewport, no matter how the site is laid out. On small or mobile viewports, where the widget is already shown full-screen, the expand button is hidden entirely since there’s nothing to expand into.
Turn it on
- Go to Settings → Web Chat.
- Open the widget you want to change.
- On the General tab, find Expandable chat window.
- Toggle the switch on.
- Save your changes.
There’s nothing else to configure — the size, clamping, and mobile behavior are all handled automatically. No custom CSS or embed snippet changes are needed.
Things to know
- Off by default. Every widget starts with this disabled. A tenant’s chat window won’t gain a new control unless you turn it on.
- Per-widget. If you run multiple widgets, enable it separately on each one that should offer it.
- Persists per browser. Once a visitor expands (or shrinks) the window, their choice is remembered for that browser and session, so the widget reopens at the size they left it in.
- Never overflows the screen. The expanded size is capped against the visitor’s viewport, so it looks correct on smaller laptop screens and large monitors alike.
- Hidden on small screens. On mobile-sized viewports the widget already fills the screen, so the expand control doesn’t appear — there’s no larger size to expand to.