lindell / lindell/JsBarcode

In ShadowDom : NoElementException: No element to render on.

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Dominant language
JavaScript
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Description

Hi Folks,

Having trouble when I have my Angular element in the shadow dom. It can't seem to find the element. I am loading in the javascript to execute JsBarcode from a server and creating a script element on the shadowRoot. It is executing, but it can't find the element in question.

Is there any way to work around this issue?

set scriptContents(javascript: string) {
        this._scriptContents = javascript;
        const scriptElement = document.createElement('script');
        

        scriptElement.textContent = javascript;
        this.elementRef.nativeElement.shadowRoot.appendChild(scriptElement);
    }

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First steps

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  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the Angular element's shadowRoot script injection shown in the report and inspect how JsBarcode resolves its target element. Reproduce the NoElementException with that setup, then determine whether a supported change or documentation is needed; done means the barcode renders or the limitation and workaround are documented.

Written by the indexing model from the issue text.

Assessment

Tech stack
angular, javascript
Domain
frontend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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