- Visited https://twitter.com/MarkGraham
- Saved it using https://web.archive.org/save/https://twitter.com/MarkGraham
- Waited for the save to complete and the page to fully load and got https://web.archive.org/web/20190607081047/https:/twitter.com/MarkGraham
- Observed the trailing part is not a valid URL any more https:/twitter.com/MarkGraham: it is missing the second slash before the authority (see https://en.wikipedia.org/wiki/Uniform_Resource_Identifier#Generic_syntax)
This might be a Twitter.com thing:
- visit https://web.archive.org/web/*/https://twitter.com/MarkGraham
- observe the latest saved URL is correct https://web.archive.org/web/20190607081047/https://twitter.com/MarkGraham
- click it, then end up at the wrong URL: https://web.archive.org/web/20190607081047/https:/twitter.com/MarkGraham
Notes:
- I have only tested this with my Chrome configurations on various machines (both regular and anonymous tabs) over at least a year; I need to figure out what happens when using different browsers.
- It does not always happen.