{"section":"known-issues","requestedLocale":"en","requestedSlug":"error-400-bad-request-when-accessing-filter-page-with-special-character-in-value","locale":"en","slug":"error-400-bad-request-when-accessing-filter-page-with-special-character-in-value","path":"docs/en/known-issues/Marketing & Merchandising/error-400-bad-request-when-accessing-filter-page-with-special-character-in-value.md","branch":"main","content":"## Summary\n\nWhen applying a filter by specification (side menu) with special character, the system returns a white screen with the following error 400: \"Bad Request! Scripts are not allowed!\"\n\n![Filtro com erro 400](https://raw.githubusercontent.com/vtexdocs/known-issues/refs/heads/main/docs/en/known-issues/Marketing%20&%20Merchandising/error-400-bad-request-when-accessing-filter-page-with-special-character-in-value_1.png)\n\n## Simulation\n\nTo simulate the behavior:\n\n1. Set a field value (product specification or SKU) with a special character (parentheses, for example) in any category;\n2. In the catalog, select a product from the category and set it up with the specification value created in the first step. Save the product;\n3. Wait for indexing;\n4. Access the category directly from the web site;\n5. On the side filter (SearchResult control), click the specification value (filter) configured with the special character;\n6. Error 400: Bad Request! Scripts are not allowed!\n\n## Workaround\n\nTo work around the problem, avoid using special characters in the product specification and/or SKU values."}