---
title: Troubleshooting
description: "**Check.** Read `getConsentManager().policyRule.prompt` and
  `.location`, or open DevTools. In the Network panel, find the `/init`
  request."
lastModified: "2026-10-10T14:59:21+01:00"
lastAuthor: Kaylee
---
## Why is there no banner?

**Check.** Read `getConsentManager().policyRule.prompt` and `.location`, or open
DevTools. In the Network panel, find the `/init` request.

**Fix.** Work through these causes in order:

1. **The policy asks for no prompt.** Visitors in regions without a consent
   law, and opt-out policies with no prompt, get no banner. See
   [why the banner may be absent](/docs/concepts/policies#why-the-banner-may-be-absent).
2. **A choice is already stored.** Clear site data for your origin, or use the
   DevTools panel, and reload.
3. **The backend request failed.** A CORS error means your site's origin is
   not in the Inth project's trusted origins. A 404 means the backend URL is
   wrong. While the request fails, optional categories stay denied and no
   banner shows.
4. **The component is outside the provider.** `ConsentBanner` must render
   inside `ConsentProvider`; outside it, Svelte throws
   `c15t: no v3 consent context`.

## Svelte throws "no v3 consent context"

**Check.** A getter or component ran without a `ConsentProvider` above
it.

**Fix.** Move it inside the provider.

**Check.** Look for a getter called in an event handler or effect. Getters use
Svelte's `getContext`.

**Fix.** Call getters at the top level of a component's `<script>`.

**Check.** If the provider is there, check that the app resolves one copy of
`@c15t/svelte`. Two copies create two separate contexts.

**Fix.** Make the app resolve a single copy of `@c15t/svelte`.

## Theme colors are ignored

**Check.** The provider's `theme` prop applies slot styles and `consentActions`
only. Colors, radius, typography and other tokens in `theme` are not turned
into CSS in the browser, and in development the provider logs a warning about
it.

**Fix.** Set the `--c15t-*` variables on `:root` in a stylesheet, or render
`generateThemeCSS()` output as `<style id="c15t-theme">`. The customize page
shows both.

**Check.** If your values still lose, inspect the element. A generated theme
uses `:root:root`, so it beats your own `:root` rule.

**Fix.** Write your rule on `:root:root` too, or move the value into the theme.

## The dialog or banner has no styles

**Check.** Look in `<head>` for `<style data-c15t-styles>` elements, and in
the console for a Content Security Policy error. On a server-rendered
SvelteKit page, check that `src/hooks.server.ts` exports `c15tHandle`.

**Fix.**

* No c15t `<style>` element: the provider sets `styles={false}` or
  `noStyle`. With `styles={false}`, import `@c15t/svelte/styles.css` once,
  in the component that renders the provider or in your global stylesheet.
* The SvelteKit banner is unstyled until hydration: add `c15tHandle` from
  `@c15t/svelte/kit` to `src/hooks.server.ts`, or set `styles={false}` and
  import `@c15t/svelte/styles.css`.
* The console reports a blocked inline style: pass the provider a `nonce`, or
  set `styles={false}` and import the stylesheet. The Content Security Policy
  page covers both.
* IAB TCF surfaces are unstyled with automatic styles disabled: import
  `@c15t/svelte/styles.css` and `@c15t/svelte/iab/styles.css` together. With
  automatic styles enabled, check the policy and IAB configuration, the
  provider's `noStyle` option, and CSP errors.

## A vendor loads before consent, or twice

**Check.** The vendor is still loaded some other way: a `<script>` tag in
`index.html` or `app.html`, a tag manager, or an SDK import in your code. Check
the Network panel with site data cleared; nothing from the vendor should load
before you allow its category.

**Fix.** Remove the other loader and keep only the `scripts` registration.

## The page reloads after saving

**Check.** When a save withdraws a category that was granted, the provider
reloads the page so code that already ran is gone. This is expected.

**Fix.** Set `reloadOnConsentRevoked: false` on the provider only if every
registered vendor stops itself through its consent API.