An invalid URI problem while rendering

I received such problem while rendering, that the program keeps trying to download one gif file but got an “invalid URI” error, so it stays at the download status :

⠋ Download media file unnamed-348904-0.gif2019-01-17T22:39:15.528Z [error]: ERROR: Invalid URI "https:///%3Ca%20href="
STACK: Error: Invalid URI "https:///%3Ca%20href="
    at Request.init (/usr/local/lib/node_modules/udacimak/node_modules/request/request.js:273:31)
    at new Request (/usr/local/lib/node_modules/udacimak/node_modules/request/request.js:127:8)
    at request (/usr/local/lib/node_modules/udacimak/node_modules/request/index.js:53:10)
    at Promise (/usr/local/lib/node_modules/udacimak/lib/commands/utils/downloadImage.js:84:56)
    at new Promise (<anonymous>)
    at downloadImage (/usr/local/lib/node_modules/udacimak/lib/commands/utils/downloadImage.js:36:10)
    at downloadMediaInHtml (/usr/local/lib/node_modules/udacimak/lib/commands/utils/downloadMediaInHtml.js:77:53)
    at createHtmlText (/usr/local/lib/node_modules/udacimak/lib/commands/render/functions/utils/createHtmlText.js:19:47)
    at createHtmlTextAtom (/usr/local/lib/node_modules/udacimak/lib/commands/render/functions/atoms/createHtmlTextAtom.js:23:48)
    at writeHtmlConcept (/usr/local/lib/node_modules/udacimak/lib/commands/render/functions/writeHtmlConcept.js:51:53)
⠴ Download media file unnamed-348904-0.gif
⠙ Download media file unnamed-348904-0.gif
⠸ Download media file unnamed-348904-0.gif
⠸ Download media file unnamed-348904-0.gif

I am using macOS and trying to download my materials which are in Chinese. Other contents before were well downloaded but it stops at this gif file and keeps trying.

[udacimak]

Thanks @AlainOUYANG

So the issue comes from this JSON entry:

{
  "id": 348904,
  "key": "1bc7f5be-9c0f-47da-990b-47becc82e1e3",
  "title": null,
  "semantic_type": "TextAtom",
  "is_public": true,
  "text": "# 练习：编写 Softmax\n\n现在该你来操作了！我们用 Python 编写 Softmax 公式吧。\n\nSoftmax公式：\n\n<img src=\"http://chart.googleapis.com/chart?cht=tx&chl=\\Large S_i = \\frac{e^i}{\\sum_j{e^j}}\" style=\"border:none;\">\n",
  "instructor_notes": ""
},

The <img> in text key contains URL with space characters, causing the markdown parser and image downloader to fail. I’ll need to debug and update the CLI to be able to handle that. It’ll take some time because my markdown parser has been too hacky due to inconsistency in Udacity’s json data.

For now, you can temporary fix it on your end by changing the text key to this:

  "text": "# 练习：编写 Softmax\n\n现在该你来操作了！我们用 Python 编写 Softmax 公式吧。\n\nSoftmax公式：\n\n<img src=\"http://chart.googleapis.com/chart?cht=tx&chl=\\Large%20S_i%20=%20\\frac{e^i}{\\sum_j{e^j}}\" style=\"border:none;\">\n",

or this:

  "text": "# 练习：编写 Softmax\n\n现在该你来操作了！我们用 Python 编写 Softmax 公式吧。\n\nSoftmax公式：\n\n![](http://chart.googleapis.com/chart?cht=tx&chl=\\Large%20S_i%20=%20\\frac{e^i}{\\sum_j{e^j}})",
},

This will be the result for this atom (in 15. 多类别分类与Softmax 函数.html)

Thanks for reporting the bug!

[AlainOUYANG]

Yeah, it works! Thanks for your reply! I really appreciate that and will recommend this awesome tool to my Chinese classmates cos we are informed yesterday that the term has changed. Btw, the Chinese Udacity Team announced that they will provide a tool for downloading the course “on one click”, but didn’t mention whether it will be only the videos or all other materials as well.