SyntaxError: Expected "%", "{", or end of input but "|" found.

[t1m013y]

Describe the bug
Error while saving any page: SingleFile error: SyntaxError: Expected "%", "{", or end of input but "|" found.

To Reproduce

1. Go to any website
2. Click on save page
3. See error at top of the page

Expected behavior
Successful page saving or showing annotation editor

Screenshots

Environment

• OS: Windows 10
• Browser: Mozilla Firefox
• Version: 119.0.1 (64-разрядный)

Additional context
Tried to save multiple pages: wikipedia, google etc but no one saved correctly.

[t1m013y]

Found reason of the error: default info panel content was set to {page-title} | {url-href} | {date-locale} {time-locale}. I replaced it with {page-title} \| {url-href} \| {date-locale} {time-locale}

[gildas-lormeau]

Thank you for the report. I confirm that "|" is special character since the support of function calls have been added in templates. I did not anticipate people would use this special character for the infobar, unfortunately. That's why it caused a regression for you. Right now, I won't implement a workaround for this because it would be a bit convoluted. However, I'm converting this report into a "discussion" to make it more visible.