Datos internos del complemento que puede usar para inicializarse. Es útil para comunicar el estado específico de la aplicación a los usuarios que se unen a la actividad que no se puede almacenar en las URLs. La longitud de esta cadena debe ser inferior a 4,096 caracteres.
[[["Fácil de comprender","easyToUnderstand","thumb-up"],["Resolvió mi problema","solvedMyProblem","thumb-up"],["Otro","otherUp","thumb-up"]],[["Falta la información que necesito","missingTheInformationINeed","thumb-down"],["Muy complicado o demasiados pasos","tooComplicatedTooManySteps","thumb-down"],["Desactualizado","outOfDate","thumb-down"],["Problema de traducción","translationIssue","thumb-down"],["Problema con las muestras o los códigos","samplesCodeIssue","thumb-down"],["Otro","otherDown","thumb-down"]],["Última actualización: 2025-07-25 (UTC)"],[],[],null,["# Interface ActivityStartingState\n\nStarting state of the add-on when the participant accepts the invitation to\nstart an activity.\n\nSignature\n---------\n\n interface ActivityStartingState\n\nProperty signatures\n-------------------\n\n| Name | Description |\n|-------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| [`additionalData`](./addon_sdk.activitystartingstate.additionaldata.md) | Data internal to the add-on that it can use to initialize itself. Useful for communicating application-specific state to users joining the activity that cannot be stored in the URLs. The length of this string must be less than 4,096 characters. |\n| [`mainStageUrl`](./addon_sdk.activitystartingstate.mainstageurl.md) | The URL that the main stage opens for users joining the activity. The length of this URL must be less than 512 characters. |\n| [`sidePanelUrl`](./addon_sdk.activitystartingstate.sidepanelurl.md) | The URL that the side panel opens for users joining the activity. The length of this URL must be less than 512 characters. |"]]