(arg)
| 294 | */ |
| 295 | async subscribe(events, browsingContexts) { |
| 296 | function toArray(arg) { |
| 297 | if (arg === undefined) { |
| 298 | return [] |
| 299 | } |
| 300 | |
| 301 | return Array.isArray(arg) ? [...arg] : [arg] |
| 302 | } |
| 303 | |
| 304 | const eventsArray = toArray(events) |
| 305 | const contextsArray = toArray(browsingContexts) |
no outgoing calls