JS ChunkLoadError - Elementor chunks loading from v5.boldsystems.org

[chriswydra]

Status: Deferred
Date Identified: 2026-01-28
Severity: Medium (causes console errors, may affect some UI features)

Symptoms

Browser console shows errors like:

ChunkLoadError: Loading chunk 645 failed.
(error: https://v5.boldsystems.org/wp-content/plugins/elementor/assets/js/text-editor.2c35aafbe5bf0e127950.bundle.min.js)

The page tries to load JavaScript chunks from the original upstream domain (v5.boldsystems.org) instead of locally.

Root Cause

The WordPress/Elementor templates contain base64-encoded inline JavaScript that hardcodes the original domain for asset URLs.

Location of Hardcoded Config

In HTML templates like src/templates/wp-templates/inst_home.html, there's a base64-encoded script:

<script id="starter-templates-zip-preview-js-extra">
var starter_templates_zip_preview = {"starter_templates_starter_templates_zip_preview":".....BASE64....."};
</script>

When decoded, this contains elementorFrontendConfig with:

"urls": {
  "assets": "https://v5.boldsystems.org/wp-content/plugins/elementor/assets/"
}

This tells Elementor's webpack runtime where to load dynamic chunks from.

Webpack Chunk Loading Mechanism

The LiteSpeed-optimized JS bundle at:

src/static/wp-content/litespeed/js/57242b137be14958b765098d4cc102573bba.js

Contains the chunk loader that uses elementorFrontendConfig.urls.assets as the base path.

The chunk mappings found in the bundle:

Chunk ID	Filename
48	lightbox.26bf6b6c4232d8789c0e.bundle.min.js
58	text-path.2bc8a9cd0e50cf1a5a9c.bundle.min.js
209	accordion.8799675460c73eb48972.bundle.min.js
331	alert.cbc2a0fee74ee3ed0419.bundle.min.js
498	counter.4470d7d tried8234a85ef572a7.bundle.min.js
520	progress.985f012a6336ab21cb44.bundle.min.js
536	tabs.c2af5be7f9cb3cdcf3d5.bundle.min.js
608	toggle.31881477c45ff5cf9d4d.bundle.min.js
632	video.78c625e89ab767d621c5.bundle.min.js
637	image-carousel.4455c6362492d9067512.bundle.min.js
645	text-editor.2c35aafbe5bf0e127950.bundle.min.js
698	wp-audio.75f0ced143febb8cd31a.bundle.min.js
723	container.c65a2a923085e1120e75.bundle.min.js

Missing Local Chunks

The local directory src/static/wp-content/plugins/elementor/assets/js/ is nearly empty - it only contains:

• counter.4470d78234a85ef572a7.bundle.min.js

All other chunks are missing.

Potential Solutions

Option 1: Download Missing Chunks (Quick Fix)

Download the missing chunks from v5.boldsystems.org to the local static directory:

cd src/static/wp-content/plugins/elementor/assets/js/

CHUNKS=(
  "lightbox.26bf6b6c4232d8789c0e.bundle.min.js"
  "text-path.2bc8a9cd0e50cf1a5a9c.bundle.min.js"
  "accordion.8799675460c73eb48972.bundle.min.js"
  "alert.cbc2a0fee74ee3ed0419.bundle.min.js"
  "progress.985f012a6336ab21cb44.bundle.min.js"
  "tabs.c2af5be7f9cb3cdcf3d5.bundle.min.js"
  "toggle.31881477c45ff5cf9d4d.bundle.min.js"
  "video.78c625e89ab767d621c5.bundle.min.js"
  "image-carousel.4455c6362492d9067512.bundle.min.js"
  "text-editor.2c35aafbe5bf0e127950.bundle.min.js"
  "wp-audio.75f0ced143febb8cd31a.bundle.min.js"
  "container.c65a2a923085e1120e75.bundle.min.js"
)

for chunk in "${CHUNKS[@]}"; do
  curl -o "$chunk" "https://v5.boldsystems.org/wp-content/plugins/elementor/assets/js/$chunk"
done

Pros: Quick fix, no template changes needed
Cons: Still relies on upstream version, may need updating if upstream changes

Option 2: Patch Base64-Encoded Configs (Long-term Fix)

1. Decode the base64 sections in HTML templates
2. Replace https://v5.boldsystems.org with relative paths or local domain
3. Re-encode and update templates

Affected templates (likely):

• src/templates/wp-templates/inst_home.html
• src/templates/wp-templates/datasets.html
• Other wp-templates files

Pros: Proper fix, removes upstream dependency
Cons: More complex, need to handle multiple templates

Option 3: Nginx/Traefik Proxy Rewrite

Add a reverse proxy rule to intercept requests to v5.boldsystems.org and serve local files instead.

Pros: No code changes needed
Cons: Adds infrastructure complexity, masks the real issue

Files Involved

• src/templates/wp-templates/*.html - HTML templates with base64 configs
• src/static/wp-content/litespeed/js/57242b137be14958b765098d4cc102573bba.js - Webpack bundle
• src/static/wp-content/plugins/elementor/assets/js/ - Where chunks should exist

Impact

• Console errors on page load
• Some Elementor widgets may not function (accordions, tabs, video players, etc.)
• Affects visual components on institution and dataset pages

Notes

• The upstream site v5.boldsystems.org is the original BOLD Systems portal
• This project appears to be a fork/adaptation of the BOLD portal
• The hardcoded URLs are an artifact of the original WordPress/Elementor setup

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Migrated from issues/open/js-chunk-loading-error/README.md