真机调试，点击获取头像报错，开发工具获取头像正常；

<form @submit="onSubmit(true, $event)">

<view class="form-item">

<view class="label">头像</view>

<button name="avatarUrl" class="auto primary" :class="{ noBg: formData.avatarUrl }"

style="padding: 10rpx 20rpx;" open-type="chooseAvatar" @chooseavatar="onChooseAvatar">

<text v-if="!formData.avatarUrl">授权头像</text>

<image class="avatar" v-else :src="formData.avatarUrl"></image>

</button>

</view>

<view class="form-item">

<view class="label">昵称</view>

<input name="nickName" type="nickname" placeholder="请填写昵称" class="ipt"

v-model="formData.nickName" />

</view>

<view class="foot">

<button @click="onSubmit(false)">取消</button>

<button class="primary" form-type="submit">确定</button>

</view>

</form>