# Troubleshooting

Source: https://developer.avalara.com/products/self-serve-tariff-code/integration-guides/classyvue-integration-guide/ewf8452000155440/

Guide: ClassyVue integration guide

# Troubleshooting

Review common widget issues, likely causes, and recommended resolutions for setup and environment-specific behavior.

Use this table to identify common issues, understand why they happen, and find a possible resolution.

Issue

Likely cause and resolution

Firefox "can't open this page" or Chrome error inside the iframe

The Profile ID doesn’t match the `env`, or the host domain isn’t allowlisted for that profile. Allow lists are scoped per environment, a `stage` allow list doesn’t apply in `prod`. Verify with the Avalara account team.

Widget never appears; console says that "element not found"

The `data-element-id` div wasn’t in the DOM when the script ran. Remove `runOnload` and call `ccce.init(el)` after the div mounts. This is common in React, Vue, and Angular routing setups.

Returns HTSUS instead of Schedule B for a US destination

`importMode` was omitted, or was passed as the string `"false"` instead of the boolean `false`. Ensure that the value is `importMode: false` (boolean).

Returns TARIC instead of CN for a Germany destination

Confirm `destination: 'DE'` and `importMode: false` are both set correctly. Quick check: CN codes are 8 digits; TARIC codes are 10 digits.

Export schedule requested for a country other than US or DE

Not yet supported. The widget will silently return the import schedule for unsupported destinations. Use `hs6: true` to retrieve the universal 6-digit HS code, or contact Product Management for the export-coverage roadmap.

Console warning: "verbose flag rejected in prod"

Expected behavior. The `verbose` attribute is only permitted in nonproduction environments. Remove it before deploying to `prod`.