HarmonyOS 使用隐式Want启动浏览器Ability无法拉起浏览器

代码如下：

async implicitStartAbility() {
        try {
            let want = {
                // uncomment line below if wish to implicitly query only in the specific bundle.
                "action": "ohos.want.action.viewData",
                // entities can be omitted.
                "entities": [ "entity.system.browsable" ],
                "uri": "xxx",
                "type": "text/plain"
            }
            let context = getContext(this) as common.UIAbilityContext;
            await context.startAbility(want)
            console.info(`explicit start ability succeed`)
        } catch (error) {
            console.info(`explicit start ability failed with ${error.code}`)
        }
     }
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