webdriverio/build/commands/browser/back.d.ts

Next-gen browser and mobile automation test framework for Node.js

/**
 *
 * Go one step back in the joint session history of the current top-level
 * browsing context. This is equivalent to pressing the browser back button
 * or calling `window.history.back()`.
 *
 * The command takes no arguments and resolves with no value.
 *
 * On a WebDriver BiDi session it calls
 * [`browsingContext.traverseHistory`](https://w3c.github.io/webdriver-bidi/#command-browsingContext-traverseHistory)
 * with `delta: -1` for the top-level context. A frame selected with
 * [`switchFrame`](/docs/api/browser/switchFrame) does not change that target.
 * After the traversal is accepted, the command waits for the same document
 * readiness [`url`](/docs/api/browser/url) maps from `pageLoadStrategy`:
 *
 * - `none` does not wait
 * - `eager` waits for `browsingContext.domContentLoaded`
 * - `normal` (the default) waits for `browsingContext.load`
 *
 * The wait uses the session page-load timeout (`timeouts.pageLoad`, 300000 ms
 * when it has not been set). A same-document traversal, such as a fragment
 * change, finishes without a load event. A back-forward cache restore commits
 * a document that is already complete and does not emit `browsingContext.load`;
 * the command returns once that document's `readyState` matches the strategy.
 *
 * A classic session posts to the WebDriver [back](/docs/api/webdriver#back)
 * endpoint. There is no previous entry in either mode when the command
 * rejects with `no such history entry`.
 *
 * <example>
    :back.js
    it('should go back and forward', async () => {
        await browser.url('https://webdriver.io')
        await browser.url('https://webdriver.io/docs/gettingstarted')
        await browser.back()
        console.log(await browser.getUrl()) // outputs the first page
        await browser.forward()
        console.log(await browser.getUrl()) // outputs the second page
    });
 * </example>
 *
 * @see https://w3c.github.io/webdriver/#dfn-back
 * @see https://w3c.github.io/webdriver-bidi/#command-browsingContext-traverseHistory
 * @alias browser.back
 * @type protocol
 *
 */
export declare function back(this: WebdriverIO.Browser): Promise<void>;
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