double escaped backtick in template literal string in template html breaks from @angular/ v21.2.2 #67675
Description
Which @angular/* package(s) are the source of the bug?
compiler
Is this a regression?
No
Description
@let versionInfo = `Version: \`${info}\``;
<div>{{ versionInfo }}</div>double escaped backtick in template html cause a error with version 21.2.2 and later but works with version 21.2.1
the scenario is that I just want to show some markdown string literals in the template html so I have to escape the backtick symbol to make it a code block for markdown
and if I remove the second escaped backtick it works again with version 21.2.2
Please provide a link to a minimal reproduction of the bug
https://stackblitz.com/edit/stackblitz-starters-yviu1qjq
and below is the worked link with the same codes but with version 21.2.1
https://stackblitz.com/edit/stackblitz-starters-ntqt2vnt
Please provide the exception or error you saw
TS2304: Cannot find name '_t1'. [plugin angular-compiler]
Please provide the environment you discovered this bug in (run ng version)
Angular CLI : 21.2.2
Angular : 21.2.2
Node.js : 22.22.0
Package Manager : npm 10.8.2
Operating System : linux x64
┌───────────────────────────┬───────────────────┬───────────────────┐
│ Package │ Installed Version │ Requested Version │
├───────────────────────────┼───────────────────┼───────────────────┤
│ @angular/build │ 21.2.2 │ 21.2.2 │
│ @angular/cli │ 21.2.2 │ 21.2.2 │
│ @angular/common │ 21.2.2 │ 21.2.2 │
│ @angular/compiler │ 21.2.2 │ 21.2.2 │
│ @angular/compiler-cli │ 21.2.2 │ 21.2.2 │
│ @angular/core │ 21.2.2 │ 21.2.2 │
│ @angular/forms │ 21.2.2 │ 21.2.2 │
│ @angular/platform-browser │ 21.2.2 │ 21.2.2 │
│ @angular/router │ 21.2.2 │ 21.2.2 │
│ rxjs │ 7.8.2 │ ^7.8.2 │
│ typescript │ 5.9.3 │ ^5.9.3 │
└───────────────────────────┴───────────────────┴───────────────────┘
Anything else?
Please help and sorry for my poor English