Description
Trim value using JavaScript string trimming and return wildcard only when the complete trimmed value equals star.
Web protocol data has several layers: a complete message or URL, individual fields or components, and the literal tokens within them. Delimiter presence, spelling, comparison rules, and parser normalization can affect results. A check of one component needs its stated scope before it can be used in a larger parser or policy decision.
Trim value using JavaScript string trimming and return wildcard only when the complete trimmed value equals star.
When to use this tool
Use HTTP If None Match Wildcard Token when you need one stated URL, header, or protocol-component check in a diagnostic or parser workflow. Supply the input level specified below.
How to use the tool and how it works
- Enter value. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read wildcard. Inspect wildcard before interpreting the associated values.
Trim value using JavaScript string trimming and return wildcard only when the complete trimmed value equals star.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| value | Value | Required. Text; maximum UTF-16 length 8192. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| wildcard | Wildcard | Required. Boolean. |
{
"input": {
"value": " * "
},
"output": {
"wildcard": true
}
}Limitations and assumptions
- This recognizes one wildcard spelling, not an entity-tag list or a conditional request's outcome. JavaScript trimming admits more whitespace than HTTP optional whitespace; no header conformance is established.
- The field tables state structural bounds; the mechanics also specify cross-field constraints. Malformed inputs and unsupported domains cause errors. A successful false flag, empty branch value, or zero placeholder has the meaning stated above and is distinct from an input error.
Alternative or Complementary methods
Use a complete URL or header parser when the task involves an entire field or message. Test actual browser, server, or cache behavior separately when a security or protocol decision depends on more than this component.
References
Similar or alternative tools
- Cookie Samesite None Secure Pair
Check the supplied SameSite/Secure pair under the rule that SameSite None requires Secure.
- CSP Host Source Subdomain Wildcard Pair
Check only a lowercase ASCII host subdomain wildcard; scheme, port and path matching are outside this fragment.