Prerequisites

• I have read the Contributing Guidelines.
• I agree to follow the Code of Conduct.
• I have searched for existing issues that already report this problem, without success.

Stencil Version

4.19.2

Current Behavior

Please close this if it's already fixed. I cannot update to the latest version since the Stencil runtime code is bundled with the library I'm using.

I get the This document requires 'TrustedHTML' assignment. The action has been blocked. error when I load my application.
It's not allowed to call styleElm.innerHTML due to missing TrustedType policy.
I guess it should be using styleElm.textContent instead?
Is there a fix or workaround for this?

Reference to code:
https://github.com/stenciljs/core/blob/8f9efc5570983ff4d03580f4000ae5f844e7f641/src/runtime/styles.ts#L87C19-L87C36

Code:

if (existingStyleElm) {
        // Update existing style element (for hydration or HMR)
        existingStyleElm.innerHTML = style;
      } else if (!appliedStyles.has(scopeId)) {
        styleElm = win.document.createElement('style');
        styleElm.innerHTML = style; <--- Issue here // This document requires 'TrustedHTML' assignment. The action has been blocked.

        // Apply CSP nonce to the style tag if it exists
        const nonce = plt.$nonce$ ?? queryNonceMetaTagContent(win.document);
        if (nonce != null) {
          styleElm.setAttribute('nonce', nonce);
        }

Expected Behavior

I should be able to have require-trusted-types-for 'script' and still use Stencil.

System Info

System: node 24.11.1
Platform: windows (10.0.22631)
CPU Model: 13th Gen Intel(R) Core(TM) i7-13850HX (28 cpus)
Compiler: C:\Users\***\repo\business-apps\web-app\node_modules\@stencil\core\compiler\stencil.js
Stencil: 4.19.2
TypeScript: 5.4.5
Rollup: 2.56.3
Parse5: 7.1.2
jQuery: 4.0.0-pre
Terser: 5.31.1

Steps to Reproduce

1. Implement @scania/tegel framework
2. Add require-trusted-types-for 'script' to your content-security-policy header
3. Load the page

Code Reproduction URL

N/A

Additional Information

No response