无法连接到 google colab ubuntu 18.04 中的本地 jupyter notebook 实例

Question

我按照link 中给出的步骤连接到 jupyter notebook 的本地实例。我能够在 Windows 系统中连接，但在 ubuntu 18.04 系统中无法连接。错误信息如下。

Failed to execute cell. Could not send execute message to runtime: SecurityError: The operation is insecure.

详细的错误信息是

The operation is insecure.
Cz@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:1362:93
Bz.prototype.fetch/<@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:1361:114
za@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:528:334
xa.prototype.next_@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:526:387
Ca/this.next@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:529:204
Ea/<@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:530:83
Ea@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:529:505
w@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:530:117
Bz.prototype.fetch@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:1361:60
Bz.prototype.get/<@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:1360:95
za@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:528:334
xa.prototype.next_@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:526:387
Ca/this.next@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:529:204
Ea/<@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:530:83
Ea@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:529:505
w@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:530:117
Bz.prototype.get@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:1360:50
h.getKernelSpecs/<@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:2757:94
za@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:528:334
xa.prototype.next_@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:526:387
Ca/this.next@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:529:204
Ea/<@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:530:83
Ea@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:529:505
w@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:530:117
h.getKernelSpecs@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:2757:49
b1/<@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:2795:163
za@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:528:334
xa.prototype.next_@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:526:387
Ca/this.next@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:529:204
Ea/<@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:530:83
Ea@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:529:505
w@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:530:117
b1@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:2794:279
n3@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:2906:414
ZY.prototype.connect@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:2910:357
p3/<@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:2908:365
za@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:528:334
xa.prototype.next_@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:526:387
Ca/this.next@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:529:204
Ea/<@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:530:83
Ea@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:529:505
w@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:530:117
p3@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:2908:171
MP/<@https://colab.research.google.com/v2/external/external_polymer_binary.js?vrz=colab-20180906-085300-RC00_211815267:2928:180

Answer 1

您在使用 Mozilla Firefox 时是否遇到此错误？如果是这样，您可能需要设置 network.websocket.allowInsecureFromHTTPS 首选项。有关详细信息，请参阅本地运行时文档的“浏览器特定设置”：https://research.google.com/colaboratory/local-runtimes.html。

注意：您需要在每个系统上配置此设置。

如果这不能解决问题，您是否介意发布更多详细信息，包括：

• 使用的浏览器版本
• 浏览器网络日志
• 运行 Jupyter 笔记本实例的控制台的任何输出