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boomerangjs

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boomerang always comes back, except when it hits something

github.com/akamai/boomerang

akamai/boomerang

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Boomerang may override (wrap) native DOM functions for monitoring purposes, depending on the plugins and features that are enabled. Generally, Boomerang wraps these functions to add a small amount of custom instrumentation, prior to executing the original function. The following is a list of known DOM overrides: | Method | Plugin | Option | Purpose | |:-----------------------------|:------------------------------|:----------------------------------------------|:-------------------------------------------------------------------| | `XMLHttpRequest` constructor | {@link BOOMR.plugins.AutoXHR} | `instrument_xhr` | Monitor timing for XHRs (individual and during SPA navigations) | | `fetch` | {@link BOOMR.plugins.AutoXHR} | `AutoXHR.monitorFetch` | Monitor timing for fetches (individual and during SPA navigations) | | `window.onerror` | {@link BOOMR.plugins.Errors} | `Errors.monitorGlobal` | Monitor global exceptions | | `console.error` | {@link BOOMR.plugins.Errors} | `Errors.monitorConsole` | Monitor app-generated error messages | | `addEventListener` | {@link BOOMR.plugins.Errors} | `Errors.monitorEvents` | Wrapped so messages from cross-origin frames have a full stack | | `removeEventListener` | {@link BOOMR.plugins.Errors} | `Errors.monitorEvents` | Wrapped so messages from cross-origin frames have a full stack | | `setTimeout` | {@link BOOMR.plugins.Errors} | `Errors.monitorTimeout` | Wrapped so messages from cross-origin frames have a full stack | | `setInterval` | {@link BOOMR.plugins.Errors} | `Errors.monitorTimeout` | Wrapped so messages from cross-origin frames have a full stack | | `history.back` | {@link BOOMR.plugins.History} | When {@link BOOMR.plugins.History} is enabled | SPA Soft Navigation monitoring | | `history.forward` | {@link BOOMR.plugins.History} | When {@link BOOMR.plugins.History} is enabled | SPA Soft Navigation monitoring | | `history.pushState` | {@link BOOMR.plugins.History} | When {@link BOOMR.plugins.History} is enabled | SPA Soft Navigation monitoring | | `history.replaceState` | {@link BOOMR.plugins.History} | When {@link BOOMR.plugins.History} is enabled | SPA Soft Navigation monitoring | | `history.go` | {@link BOOMR.plugins.History} | When {@link BOOMR.plugins.History} is enabled | SPA Soft Navigation monitoring |