(arg)
| 236 | */ |
| 237 | async subscribe(events, browsingContexts) { |
| 238 | function toArray(arg) { |
| 239 | if (arg === undefined) { |
| 240 | return [] |
| 241 | } |
| 242 | |
| 243 | return Array.isArray(arg) ? [...arg] : [arg] |
| 244 | } |
| 245 | |
| 246 | const eventsArray = toArray(events) |
| 247 | const contextsArray = toArray(browsingContexts) |
no outgoing calls