Detects when an SSR'd component mutates its own host element (e.g. adding/removing classes/attributes) during its connectedCallback, adding a data-lwc-host-mutated attribute. This attribute is read during hydration time, and validation for the element's classes/attrs is skipped entirely, the same as if the component had explicitly set static validationOptOut = true.
The goal is to make it easier for component authors to ignore small hydration errors caused by mutating their hosts during connectedCallback.
Does this pull request introduce a breaking change?
😮💨 No, it does not introduce a breaking change.
Does this pull request introduce an observable change?
🔬 Yes, it does include an observable change.
Kinda? But this is for SSR, which is not officially supported yet, and this removes restrictions rather than adding them.
Details
Detects when an SSR'd component mutates its own host element (e.g. adding/removing classes/attributes) during its
connectedCallback, adding adata-lwc-host-mutatedattribute. This attribute is read during hydration time, and validation for the element's classes/attrs is skipped entirely, the same as if the component had explicitly setstatic validationOptOut = true.The goal is to make it easier for component authors to ignore small hydration errors caused by mutating their hosts during
connectedCallback.Does this pull request introduce a breaking change?
Does this pull request introduce an observable change?
Kinda? But this is for SSR, which is not officially supported yet, and this removes restrictions rather than adding them.
GUS work item