85c171920a
Prior to this commit, event listener options were mutated directly, for example, `options.signal = undefined` or `options.once = false`. This issue arises in apps using third-party libraries where the responsibility lies with the library provider. Some libraries, like WalletConnect, pass an abort controller as `addEventListener` options. Because the abort controller has the `signal` property, this is a valid case. Thus, mutating options would throw an error since `signal` is a readonly property. Even though zone.js is being deprecated as Angular moves towards zoneless change detection, this fix is necessary for apps that still use zone.js and cannot migrate to zoneless change detection because they rely on third-party libraries and are not responsible for the code used in them. Closes #54142 PR Close #55796 |
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