browserJS

Runs JavaScript in the current tab of a browser and returns what it gives back.

Keyboard Maestro: ChromeJavaScript, SafariJavaScript, FrontBrowserJavaScript

Details #

browserJS(browser, script) takes exactly two arguments and returns text.

browser is "safari", "chrome" or "front". script is JavaScript run in the current tab of the front window; the value it evaluates to comes back as text.

Parameters #

Takes 2 arguments. {{ browserJS(text, b) }}

Examples #

browserJS("front", "document.title")

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Gotchas #

Needs Automation permission for the browser, and the browser must allow JavaScript from Apple Events. A refusal, an error in the script or no answer within about 5 seconds returns empty text.
Reading the page is harmless, but a script that changes the page changes it every time the expression is evaluated.