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  1. Qt
  2. QTBUG-129303

[Android] WebView.loadHtml() fails to correctly encode certain strings?

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Details

    • Android
    • 9feccda31 (dev), 1bc5783d4 (6.8)

    Description

      Code

      import QtQuick
      import QtWebView
      
      Window {
          id: root
          width: 640
          height: 480
          visible: true
      
          property int idx: 0
          property list<string> htmls: [
              '<html><body><h1>Hello, World!</h1><p>This is an example of loading HTML content in a WebView.</p></body></html>',
              '<html><body><span style="color:#ff0000">Hello</span></body></html>',
              '<html><body><span style="color:ff0000">Hello</span></body></html>'
          ]
      
          Timer {
              interval: 2000
              repeat: true
              running: true
              onTriggered: {
                  console.log("Loading index", root.idx)
                  webView.loadHtml(root.htmls[root.idx])
                  root.idx += 1
                  if (root.idx >= root.htmls.length)
                      root.idx = 0
              }
          }
      
          WebView {
              id: webView
              anchors.fill: parent
      
              onLoadingChanged: (loadRequest) => {
                  switch (loadRequest.status) {
                  case WebView.LoadStartedStatus: console.log("Loading", loadRequest.url); break
                  case WebView.LoadSucceededStatus: console.log("Succeeded", loadRequest.errorString); break
                  case WebView.LoadSucceededStatus: console.log("Failed", loadRequest.errorString); break
                  default: break
                  }
              }
          }
      }
      

      Outcomes

      • Windows loads all 3 pages correctly (Expected)
      • Android fails to load the 2nd page (index 1) (Not Expected)

       

      Windows output:

      qml: Loading index 0
      qml: Loading data:text/html;charset=UTF-8,%3Chtml%3E%3Cbody%3E%3Ch1%3EHello%2C World%21%3C%2Fh1%3E%3Cp%3EThis is an example of loading HTML content in a WebView.%3C%2Fp%3E%3C%2Fbody%3E%3C%2Fhtml%3E
      qml: Succeeded
      qml: Loading index 1
      qml: Loading data:text/html;charset=UTF-8,%3Chtml%3E%3Cbody%3E%3Cspan style%3D%22color%3A%23ff0000%22%3EHello%3C%2Fspan%3E%3C%2Fbody%3E%3C%2Fhtml%3E
      qml: Succeeded
      qml: Loading index 2
      qml: Loading data:text/html;charset=UTF-8,%3Chtml%3E%3Cbody%3E%3Cspan style%3D%22color%3Aff0000%22%3EHello%3C%2Fspan%3E%3C%2Fbody%3E%3C%2Fhtml%3E
      qml: Succeeded
      

       

      Android output:

      D qml : : Loading index 0
      D qml : : Loading
      D qml : : Loading data:text/html;charset=UTF-8,%3Chtml%3E%3Cbody%3E%3Ch1%3EHello, World!%3C/h1%3E%3Cp%3EThis is an example of loading HTML content in a WebView.%3C/p%3E%3C/body%3E%3C/html%3E
      D qml : : Succeeded
      D qml : : Loading index 1
      D qml : : Loading
      D qml : : Loading data:text/html;charset=UTF-8,%3Chtml%3E%3Cbody%3E%3Cspan style=%22color:#ff0000%22%3EHello%3C/span%3E%3C/body%3E%3C/html%3E
      D qml : : Succeeded
      D qml : : Loading index 2
      D qml : : Loading
      D qml : : Loading data:text/html;charset=UTF-8,%3Chtml%3E%3Cbody%3E%3Cspan style=%22color:ff0000%22%3EHello%3C/span%3E%3C/body%3E%3C/html%3E
      D qml : : Succeeded
      

       

      Notes
      The Windows data URL for index 1 is:

      data:text/html;charset=UTF-8,%3Chtml%3E%3Cbody%3E%3Cspan style%3D%22color%3A%23ff0000%22%3EHello%3C%2Fspan%3E%3C%2Fbody%3E%3C%2Fhtml%3E
      

       

      The Android data URL for index 1 is:

      data:text/html;charset=UTF-8,%3Chtml%3E%3Cbody%3E%3Cspan style=%22color:#ff0000%22%3EHello%3C/span%3E%3C/body%3E%3C/html%3E
      

       

      In other words, the Android string doesn't encode '=' and '#'

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            michal Michal Klocek
            skoh-qt Sze Howe Koh
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            Dates

              Created:
              Updated:
              Resolved:

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