# File url content type invalid · file.url\_content\_type\_invalid

Canonical page: https://errorgram.rmbk.me/errors/file.url_content_type_invalid/

**Stable ID:** `file.url_content_type_invalid` · **Evidence:** source derived

The retrieved web content is unsuitable for the requested operation.

The mapping does not identify a required MIME type or prove which part of the retrieved content is unsuitable.

## When it matches

Every field in a rule must match. Alternative rules are joined with OR.
Codes below are JSON response fields, not inferred HTTP statuses.

- JSON `error_code`: **400**.

Exact description:

```text
Bad Request: wrong type of the web page content
```

See [matching rules](https://errorgram.rmbk.me/matching/) for parameter precedence
and unknown or ambiguous results.

**Illustrative methods:** `sendPhoto`, `sendDocument`.

## Possible causes

- The retrieved page did not provide usable media for the operation.

## Before deciding what to do

**Application decision:** check url content.
**Repeat request:** after relevant change.

- Check that the URL serves the intended media and that the selected method accepts that media type.

These are application choices. Errorgram does not retry, suppress the error,
or change bot state.

## Facts

This condition adds no extracted facts; `result.facts` is empty.

## Example

Synthetic examples derived from the cited source.

API method: `sendPhoto`.

```json
{
  "ok": false,
  "error_code": 400,
  "description": "Bad Request: wrong type of the web page content"
}
```

### Python

```python
from errorgram import classify

response = {
    "ok": False,
    "error_code": 400,
    "description": "Bad Request: wrong type of the web page content",
}
result = classify(response, method='sendPhoto')

assert result.id == 'file.url_content_type_invalid'
print(result.entry["summary"])
```

### JavaScript and TypeScript

```ts
import { classify } from "errorgram";

const response = {
  "ok": false,
  "error_code": 400,
  "description": "Bad Request: wrong type of the web page content"
};
const result = classify(response, { method: "sendPhoto" });

if (result.status === "matched" && result.id === "file.url_content_type_invalid") {
  console.log(result.entry.summary);
}
```

## Framework names

| Integration | Type or ID |
| --- | --- |
| Python | `errorgram.FileUrlContentTypeInvalid` |
| aiogram | `errorgram.aiogram.FileUrlContentTypeInvalid` extends `TelegramBadRequest` |
| grammY | `EnrichedGrammyError` with `classification.id` equal to `file.url_content_type_invalid` |

Enrichment is explicit and keeps framework catch compatibility.
Follow the [Python and aiogram guide](https://errorgram.rmbk.me/python/) or
[JavaScript, TypeScript, and grammY guide](https://errorgram.rmbk.me/javascript/).

## Evidence

- [Bot API 10.3 · telegram-bot-api/Client.cpp:118–119](https://github.com/tdlib/telegram-bot-api/blob/e3e9dd8e5b3d7ab8537cd5a10dc31d5ffa8f82d1/telegram-bot-api/Client.cpp#L118-L119). WEBPAGE\_MEDIA\_EMPTY is rewritten to this description. Revision `e3e9dd8e5b3d7ab8537cd5a10dc31d5ffa8f82d1`.
- [Bot API 10.3 · telegram-bot-api/Client.cpp:85–106](https://github.com/tdlib/telegram-bot-api/blob/e3e9dd8e5b3d7ab8537cd5a10dc31d5ffa8f82d1/telegram-bot-api/Client.cpp#L85-L106). The rewrite runs only after the error is normalized to code 400. Revision `e3e9dd8e5b3d7ab8537cd5a10dc31d5ffa8f82d1`.
- [Bot API 10.3 · telegram-bot-api/Client.cpp:165–205](https://github.com/tdlib/telegram-bot-api/blob/e3e9dd8e5b3d7ab8537cd5a10dc31d5ffa8f82d1/telegram-bot-api/Client.cpp#L165-L205). Adds the code-specific prefix and lowercases only the initial character of ordinary messages. Revision `e3e9dd8e5b3d7ab8537cd5a10dc31d5ffa8f82d1`.

Source references identify the reviewed revision, not the first release
that introduced this response.

## Data and versions

Catalogue `0.1.0` · schema `1.0.0` · reviewed 2026-09-16.

[Markdown](https://errorgram.rmbk.me/errors/file.url_content_type_invalid.md) · [Condition JSON](https://errorgram.rmbk.me/errors/file.url_content_type_invalid.json) · [Full catalogue and sources](https://errorgram.rmbk.me/catalogue.json) · [JSON Schema](https://errorgram.rmbk.me/schema.json)