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Can't log into Scratch with some user agents

See original GitHub issue

Expected Behavior

A user should be able to log into Scratch with any user agent. https://scratch.mit.edu/robots.txt

Actual Behavior

With a certain user agent (shown below) a user is not able to log into Scratch. It also shows a message along the lines of “an error occured”.

Steps to Reproduce

Set your useragent to Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ninetails/2.2.0 Chrome/96.0.4664.45 Electron/16.0.0 Safari/537.36.
Log in to Scratch (or try to at least).

One interesting thing I found is that if you change the x86_64 part of the UA, it will work.

Issue Analytics

State:
Created 2 years ago
Reactions:7
Comments:11 (9 by maintainers)

Top GitHub Comments

4reactions

hello-smile6commented, Dec 22, 2021

A user should be able to log into Scratch with any user agent. https://scratch.mit.edu/robots.txt

Actually, robots.txt is a guideline for search engines and web crawlers. Additionally, any entity that is not a web browser should respect robots.txt. Therefore, as /site-api is disallowed in robots.txt, there is plenty of justification for unrecognized UAs to be blocked, such as cURL, which could potentially be used (in the form of libcurl) for a bot, and other abnormal UAs. At least, that’s what my opinion on the subject is.

4reactions

colbygkcommented, Dec 22, 2021