Trouble downloading files in Google Apps Script web app after Chrome update

It is discussed here https://issuetracker.google.com/issues/157368720 that HtmlService.XFrameOptionsMode.ALLOWALL should set allow-downloads on GAS web app sandbox. We should watch this issue for changes.


Include sandbox="allow-downloads" in your iframe tag, which contains the code that is used for downloading the CSV file.


Update as of 07/29/2020:

The attribute "allow-downloads" has now been added to the sandbox attributes and there is no longer any issue downloading files.

Tags:

Web Applications

Google Chrome

Iframe

Sandbox

Google Apps Script

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