Pattern(/^[^+%{}~?^:#!|=*;,\[\]<>"'`\¿\-]*$/) not accepting chars x,f,b on prod build while working on dev build for Validators about angular HOT 7 CLOSED

The pattern /^[^+%{}~?^:#!|=*;,[]<>"'\¿\-]*$/ contains a closing ] within the negated character set, causing the set to be closed prematurely.

I don't know how this used to work before, but the current behavior is expected. There is no security implications to this, as frontend data validation should never be considered sufficient to guard data validity.

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Regular expression is absolutely working fine on JAVA and other online forums like https://regexr.com/ Only, in Angular 14.2.0 its not working, that means Regular expression has no problem.
For your information @JoostK , regular expression /^[^+%{}~?^:#!|=*;,\[\]<>"'`\¿\-]*$/ is absolutely working fine on Angular 10.2.0. That means, it may be a bug in 14.2.0.

Kindly share your inputs on this.

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regexr.com has the same behavior as I mentioned:

but, when pasting the regex, it will automatically escape the closing ]:

Doing so fixes the problem, which is actually the way to go here.

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You can check the regular expression mentioned in the query:
/^[^+%{}~?^:#!|=*;,\[\]<>"'`\¿\-]*$/
This expression is working fine on https://regexr.com/ and Angular 10.2.0 while the same is not working on Angular 14.2.0. You can check by pasting this expression on regexr.com and it will not escape any character.

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@JoostK , yes when I pasted the regular expression /^[^+%{}~?^:#!|=*;,\[\]<>"'`\¿\-]*$/ over the https://regexr.com/, it has not skipped not a single character and accepting all the letters x, f, or b.

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/^[^+%{}~?^:#!|=*;,\[\]<>"'`\¿\-]*$/ is not the regex you shared initially.

It has [] escaped => \[\], this is what happens when pasting it to regexr.com.

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@JoostK , your input will be required to give this thread a clear direction. Look at the regular expression in the question subject, /^[^+%{}~?^:#!|=*;,\[\]<>"'`\¿\-]*$/. Here, user is asking why it is not allowing x,f, and b characters on Angular 14.2.0 while the same is working on Angular 10.2.0 . I have validated and regular expression is correct and working fine on other language like Java, and it is working fine. It seems, problem relates somewhere from Angular Validators framework.

Can you get validate it? This can be bug in the mention version. Because I checked the regular expression online and it is working as expected.

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