将天气 iframe 嵌入到 Shiny Dashboard 中

我正在尝试将 Forecast.io 的天气预报嵌入到闪亮的仪表板中。我最初在使用 & 符号时遇到了麻烦，但看到一篇文章提供了如何使用特殊字符格式化 HTML 代码的示例。但是，当我运行该应用程序时，我看到一个简单的“未找到”，即使我知道该链接有效并且格式正确。我不确定我错过了什么。

library(shiny)
library(shinydashboard)

ui <- dashboardPage(
  dashboardHeader(title = "Dashboard"),
  dashboardSidebar(
    sidebarMenu(
      menuItem("Dashboard", tabName = "dashboard", icon = icon("dashboard"))
    )
  ),

  dashboardBody(
    tabItems(
      # First tab content
      tabItem(tabName = "dashboard",
              fluidRow(

                column(12,
                       mainPanel(htmlOutput("frame")
                       )
                )
              )
      )
    )
  )
)

server <- shinyServer(function(input, output) {

  output$frame <- renderUI({
    tags$iframe(id = 'app', src = url("https://forecast.io/embed/#lat=42.3583&lon=-71.0603&name=Downtown Boston"), width = '100%')
  })

})

shinyApp(ui,server)

Shiny Dashboard 中错误的屏幕截图 https://i.stack.imgur.com/YqEsC.png

使用插入的仪表板进行更新

我将 url 从服务器传输到 ui：

library(shiny)
library(shinydashboard)

ui <- dashboardPage(
    dashboardHeader(title = "Dashboard"),
    dashboardSidebar(
        sidebarMenu(
            menuItem("Dashboard", 
                     tabName = "dashboard", 
                     icon = icon("dashboard")
            )
        )
    ),

    dashboardBody(
        tabItems(
            tabItem(
                tabName = "dashboard",
                fluidRow(
                    tags$iframe(
                        seamless = "seamless", 
                        src = "https://forecast.io/embed/#lat=42.3583&lon=-71.0603&name=Downtown Boston", 
                        height = 800, width = 1400
                    )
                )
            )
        )
    )
)

server <- function(input, output) {}
shinyApp(ui, server)