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pedroalmeidaes merged 1 commit into from
Aug 4, 2026
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docs: web sdk v4 improvements #317

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2 changes: 1 addition & 1 deletion select/sdks/web/v2.md
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# Web SDK <a style={{borderBottom: '2px solid #0048ff'}} className="improve-docs" href="/select/sdks/web/v2">v2</a> <a style={{'color': '#111'}} className="improve-docs" href="/select/sdks/web/v3">v3</a> <a style={{marginRight: 'auto', 'color': '#111'}} className="improve-docs" href="/select/sdks/web/v4">v4</a>
# Web SDK <a style={{borderBottom: '2px solid #0048ff'}} className="improve-docs" href="/docs/select/sdks/web/v2">v2</a> <a style={{'color': '#111'}} className="improve-docs" href="/docs/select/sdks/web/v3">v3</a> <a style={{marginRight: 'auto', 'color': '#111'}} className="improve-docs" href="/docs/select/sdks/web/v4">v4</a>
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pedroalmeidaes marked this conversation as resolved.

The Fidel SDKs provide a secure way for you to add card-linking capabilities to your applications. The alternative involves using the [Fidel Cards API](https://reference.fidel.uk/reference/create-card), but you'll need to be PCI Compliant before you can use it. Using the Fidel SDKs, card details are sent directly to the Fidel API through a secure connection without exposing your servers to sensitive information. They take care of all PCI Compliance requirements, so you don't have to.

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2 changes: 1 addition & 1 deletion select/sdks/web/v3.md
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# Web SDK <a style={{'color': '#111'}} className="improve-docs" href="/select/sdks/web/v2">v2</a> <a style={{'color': '#111'}} className="improve-docs" href="/select/sdks/web/v3">v3</a> <a style={{marginRight: 'auto', borderBottom: '2px solid #0048ff'}} className="improve-docs" href="/select/sdks/web/v4">v4</a>
# Web SDK <a style={{'color': '#111'}} className="improve-docs" href="/docs/select/sdks/web/v2">v2</a> <a style={{'color': '#111'}} className="improve-docs" href="/docs/select/sdks/web/v3">v3</a> <a style={{marginRight: 'auto', borderBottom: '2px solid #0048ff'}} className="improve-docs" href="/docs/select/sdks/web/v4">v4</a>
Comment thread
pedroalmeidaes marked this conversation as resolved.

The Fidel SDKs provide a secure way for you to add card-linking capabilities to your applications. The alternative involves using the [Fidel Cards API](https://reference.fidel.uk/reference/create-card), but you'll need to be PCI Compliant before you can use it. Using the Fidel SDKs, card details are sent directly to the Fidel API through a secure connection without exposing your servers to sensitive information. They take care of all PCI Compliance requirements, so you don't have to.

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14 changes: 5 additions & 9 deletions select/sdks/web/v4.md
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# Web SDK <a style={{'color': '#111'}} className="improve-docs" href="/select/sdks/web/v2">v2</a> <a style={{'color': '#111'}} className="improve-docs" href="/select/sdks/web/v3">v3</a> <a style={{marginRight: 'auto', borderBottom: '2px solid #0048ff'}} className="improve-docs" href="/select/sdks/web/v4">v4</a>
# Web SDK <a style={{'color': '#111'}} className="improve-docs" href="/docs/select/sdks/web/v2">v2</a> <a style={{'color': '#111'}} className="improve-docs" href="/docs/select/sdks/web/v3">v3</a> <a style={{marginRight: 'auto', borderBottom: '2px solid #0048ff'}} className="improve-docs" href="/docs/select/sdks/web/v4">v4</a>
Comment thread
pedroalmeidaes marked this conversation as resolved.

The Fidel Web SDK v4 provides a secure, PCI-compliant way to integrate card-linking and card-enrolment capabilities directly into your web applications. By embedding the SDK as a secure HTML iframe, card details are transmitted directly to Fidel's secure vault without exposing your servers to sensitive cardholder data. This dramatically reduces your PCI-DSS compliance scope.

Expand Down Expand Up @@ -70,8 +70,7 @@ If the endpoint returns a `404 Not Found` response, this indicates that the user

To launch the SDK, construct the URL with your configuration properties and bind it as the `src` attribute of a standard HTML `<iframe>`.

{/* TODO: add CodePen snippets instead of image */}
<img src="/images/sdk/v4/1-initializing.png" alt="Initializing" style={{ width: '100%', maxWidth: 600, height: 'auto' }} /> />
<Codepen id="web-sdk-v4-interactive-demo" slug="019fcd1d-9d26-7009-90f7-8174b41fb6a1" title="V4 Fidel Web SDK - Interactive Demo" height={950} />

### Scenario A: Existing User

Expand All @@ -85,8 +84,7 @@ Provide the `userSessionToken` returned from the Pre-bootstrap API:
</iframe>
```

{/* TODO: add CodePen snippets instead of image */}
<img src="/images/sdk/v4/2-existing-user.png" alt="Existing user" style={{ width: '100%', maxWidth: 600, height: 'auto' }} /> />
<img src="/images/sdk/v4/2-existing-user.png" alt="Existing user" style={{ width: '100%', maxWidth: 600, height: 'auto' }} />

### Scenario B: New User (With Service/Registration Charge)

Expand All @@ -100,8 +98,7 @@ Simply omit the session token parameter. If your account plan mandates a registr
</iframe>
```

{/* TODO: add CodePen snippets instead of image */}
<img src="/images/sdk/v4/3-new-user.png" alt="New user with service charge" style={{ width: '100%', maxWidth: 600, height: 'auto' }} /> />
<img src="/images/sdk/v4/3-new-user.png" alt="New user with service charge" style={{ width: '100%', maxWidth: 600, height: 'auto' }} />

### Scenario C: New User (No Service Charge)

Expand All @@ -115,8 +112,7 @@ If no registration fee is configured, the checkout UI reflects a standard card l
</iframe>
```

{/* TODO: add CodePen snippets instead of image */}
<img src="/images/sdk/v4/4-new-user-service.png" alt="New user no service charge" style={{ width: '100%', maxWidth: 600, height: 'auto' }} /> />
<img src="/images/sdk/v4/4-new-user-service.png" alt="New user no service charge" style={{ width: '100%', maxWidth: 600, height: 'auto' }} />

> 💡 **Pro-tip:** The `{PUBLISHER_USER_IDENTIFIER}` should be your platform's unique UUID (v4 is strongly recommended) mapping to that specific customer.

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