我已经编写并优化了一个Shiny应用程序，现在我正在与我工作的组织的IT部门奋斗，以便将其发布在他们的服务器上。目前，根据W3C验证器的结果，他们声称该应用程序不符合W3C标准，这是正确的。
我一直在尝试解决以下问题，但没有成功:
<form class="well" role="complementary">“form”元素上“role”属性的值“complementary”无效。<label class="control-label" id="foo-label" for="foo">“label”元素上“for”属性的值必须是非隐藏表单控件的ID。
即使是非常简单的Shiny应用程序也可能存在此类错误，例如:
# Reprex adapted from https://shiny.rstudio.com/gallery/tabsets.html
library(shiny)
# Define UI for random distribution app ----
ui <- fluidPage(
# App title ----
titlePanel("Tabsets"),
# Sidebar layout with input and output definitions ----
sidebarLayout(
# Sidebar panel for inputs ----
sidebarPanel(
# Input: Select the random distribution type ----
radioButtons("dist", "Distribution type:",
c("Normal" = "norm",
"Uniform" = "unif",
"Log-normal" = "lnorm",
"Exponential" = "exp")),
# br() element to introduce extra vertical spacing ----
br(),
# Input: Slider for the number of observations to generate ----
sliderInput("n",
"Number of observations:",
value = 500,
min = 1,
max = 1000)
),
# Main panel for displaying outputs ----
mainPanel(
# Output: Tabset w/ plot, summary, and table ----
tabsetPanel(type = "tabs",
tabPanel("Plot", plotOutput("plot")),
tabPanel("Summary", verbatimTextOutput("summary")),
tabPanel("Table", tableOutput("table"))
)
)
)
)
# Define server logic for random distribution app ----
server <- function(input, output) {
# Reactive expression to generate the requested distribution ----
d <- reactive({
dist <- switch(input$dist,
norm = rnorm,
unif = runif,
lnorm = rlnorm,
exp = rexp,
rnorm)
dist(input$n)
})
# Generate a plot of the data ----
output$plot <- renderPlot({
dist <- input$dist
n <- input$n
hist(d(),
main = paste("r", dist, "(", n, ")", sep = ""),
col = "#75AADB", border = "white")
})
}
# Create Shiny app ----
shinyApp(ui, server)
第二个错误似乎只涉及单选按钮，而第一个错误似乎影响到我从网站上找到和使用 W3C 验证器测试过的所有闪亮应用程序。 为了完整起见，我还报告了 reprex 中生成的 HTML 代码：
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<script type="application/shiny-singletons"></script>
<script type="application/html-dependencies">jquery[3.6.0];shiny-css[1.7.1];shiny-javascript[1.7.1];ionrangeslider-javascript[2.3.1];strftime[0.9.2];ionrangeslider-css[2.3.1];bootstrap[3.4.1]</script>
<script src="shared/jquery.min.js"></script>
<link href="shared/shiny.min.css" rel="stylesheet" />
<script src="shared/shiny.min.js"></script>
<script src="shared/ionrangeslider/js/ion.rangeSlider.min.js"></script>
<script src="shared/strftime/strftime-min.js"></script>
<link href="shared/ionrangeslider/css/ion.rangeSlider.css" rel="stylesheet" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link href="shared/bootstrap/css/bootstrap.min.css" rel="stylesheet" />
<link href="shared/bootstrap/accessibility/css/bootstrap-accessibility.min.css" rel="stylesheet" />
<script src="shared/bootstrap/js/bootstrap.min.js"></script>
<script src="shared/bootstrap/accessibility/js/bootstrap-accessibility.min.js"></script> <title>Tabsets</title>
</head>
<body>
<div class="container-fluid">
<h2>Tabsets</h2>
<div class="row">
<div class="col-sm-4">
<form class="well" role="complementary">
<div id="dist" class="form-group shiny-input-radiogroup shiny-input-container" role="radiogroup" aria-labelledby="dist-label">
<label class="control-label" id="dist-label" for="dist">Distribution type:</label>
<div class="shiny-options-group">
<div class="radio">
<label>
<input type="radio" name="dist" value="norm" checked="checked"/>
<span>Normal</span>
</label>
</div>
<div class="radio">
<label>
<input type="radio" name="dist" value="unif"/>
<span>Uniform</span>
</label>
</div>
<div class="radio">
<label>
<input type="radio" name="dist" value="lnorm"/>
<span>Log-normal</span>
</label>
</div>
<div class="radio">
<label>
<input type="radio" name="dist" value="exp"/>
<span>Exponential</span>
</label>
</div>
</div>
</div>
<br/>
<div class="form-group shiny-input-container">
<label class="control-label" id="n-label" for="n">Number of observations:</label>
<input class="js-range-slider" id="n" data-skin="shiny" data-min="1" data-max="1000" data-from="500" data-step="1" data-grid="true" data-grid-num="9.99" data-grid-snap="false" data-prettify-separator="," data-prettify-enabled="true" data-keyboard="true" data-data-type="number"/>
</div>
</form>
</div>
<div class="col-sm-8" role="main">
<div class="tabbable">
<ul class="nav nav-tabs" data-tabsetid="9747">
<li class="active">
<a href="#tab-9747-1" data-toggle="tab" data-bs-toggle="tab" data-value="Plot">Plot</a>
</li>
<li>
<a href="#tab-9747-2" data-toggle="tab" data-bs-toggle="tab" data-value="Summary">Summary</a>
</li>
<li>
<a href="#tab-9747-3" data-toggle="tab" data-bs-toggle="tab" data-value="Table">Table</a>
</li>
</ul>
<div class="tab-content" data-tabsetid="9747">
<div class="tab-pane active" data-value="Plot" id="tab-9747-1">
<div id="plot" class="shiny-plot-output" style="width:100%;height:400px;"></div>
</div>
<div class="tab-pane" data-value="Summary" id="tab-9747-2">
<pre class="shiny-text-output noplaceholder" id="summary"></pre>
</div>
<div class="tab-pane" data-value="Table" id="tab-9747-3">
<div id="table" class="shiny-html-output"></div>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
您有什么建议吗？ 谢谢！
此消息也发布在RStudio社区：抱歉跨帖。