I am trying to swap __ with a text box in Angular 2/4. Take a look at the example provided in the link below.
https://stackblitz.com/edit/angular-ajkvyq?file=app%2Fapp.component.ts
I am trying to swap __ with a text box in Angular 2/4. Take a look at the example provided in the link below.
https://stackblitz.com/edit/angular-ajkvyq?file=app%2Fapp.component.ts
Component templates cannot bind unsanitized HTML directly; it must be sanitized first:
constructor(private sanitizer: DomSanitizer) {}
replaceFillBlanks(question): SafeHtml {
var $inputBox = '<input type="text" name="fillBox"/>';
let q = this.sanitizer.bypassSecurityTrustHtml(question.replace(/__/g,$inputBox));
return q;
}
Angular takes measures to secure your HTML content and prevent XSS attacks. Injecting HTML is not as simple as it seems - you need to sanitize it properly.
To safely use HTML content, consider using
bypassSecurityTrustHtml(value: string)Remember, caution is key. It's crucial to understand the risks involved:
Instances where XSS vulnerabilities can occur should be rare, and extra care is essential to avoid introducing security flaws!
import { Component } from '@angular/core';
import { DomSanitizer, SafeHtml } from '@angular/platform-browser';
@Component({
selector: 'my-app',
templateUrl: './app.component.html',
styleUrls: [ './app.component.css' ]
})
export class AppComponent {
question = "How are you doing today ?. I'm doing well.";
constructor(private _sanitizer: DomSanitizer){}
replaceFillBlanks(question){
var $inputBox = '<input type="text" name="fillBox"/>';
// if you'll replace any other string except text box this will work fine.
//var $inputBox = 'hi';
let q = question.replace(/__/g,$inputBox);
console.log(q);
return this._sanitizer.bypassSecurityTrustHtml(q);
}
}
Ref: Inject <input> in innerHTML angular 2
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