在Heroku上托管的Flask应用中渲染散景图

时间：2015-10-31 13:11:39

标签： python heroku flask bokeh

我在https://macabre-spirit-1593.herokuapp.com/1/处有Heroku提供的以下基本散景图。当我在本地运行此应用程序，或保存Heroku页面并在本地打开它时，将显示该图，但当我在Heroku上查看该页面时，该图表不存在。为什么从Heroku提供的情节不会出现？

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        Bokeh.logger.info(' - modeltype: ' + plot.modeltype);
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      <h1>Plot 2</h1>
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2 个答案:

答案 0 :(得分：3)

Heroku页面通过HTTPS提供。页面上的资源被硬编码为通过HTTP提供。现代浏览器出于安全原因检测并阻止它;您可以忽略警告并观察该情节出现。更改链接的资源，以便通过HTTPS提供服务，或者更好地省略方案并让浏览器决定。

<link rel="stylesheet" href="//cdn.pydata.org/bokeh/release/bokeh-0.9.2.min.css" type="text/css" />
<script type="text/javascript" src="//cdn.pydata.org/bokeh/release/bokeh-0.9.2.min.js"></script>

答案 1 :(得分：1)

http://bokeh.pydata.org/en/latest/docs/user_guide/embed.html提供的Bokeh文档声明如下：

  

嵌入通过HTTPS提供的页面时，任何脚本和资源   也必须通过HTTPS加载，否则浏览器将拒绝加载到期   到一个“不安全”的脚本。对于这种情况，Bokeh CDN资源是   也可以通过HTTPS将“http”替换为“https”   以上网址。

由于Heroku应用程序是通过HTTPS提供的，因此Bokeh样式表和脚本链接应以https而不是http开头。

<link href="https://cdn.pydata.org/bokeh/release/bokeh-0.12.6.min.css" rel="stylesheet" type="text/css">
<link href="https://cdn.pydata.org/bokeh/release/bokeh-widgets-0.12.6.min.css" rel="stylesheet" type="text/css">

<script src="https://cdn.pydata.org/bokeh/release/bokeh-0.12.6.min.js"></script>
<script src="https://cdn.pydata.org/bokeh/release/bokeh-widgets-0.12.6.min.js"></script>
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