<script> and <noscript>Baseline · Widely available
The <script> element contains or loads data or executable code. This is typically used to load JavaScript code. The <noscript> element represents alternative content to show when scripting is not allowed.
Supported in all major browsers for at least 30 months — safe to use without fallbacks. Baseline since Jul 29, 2015. Widely available since Jan 29, 2018.
Browser support
DesktopChrome
1+Supportedsince Dec 11, 2008
Current: 155Edge
12+Supportedsince Jul 29, 2015
Current: 154Firefox
1+Supportedsince Nov 9, 2004
Current: 157Safari
1–2Not supported
3+Supportedsince Oct 26, 2007
Current: 27MobileChrome Android
18+Supportedsince Jun 27, 2012
Current: 155Firefox Android
4+Supportedsince Mar 29, 2011
Current: 157Safari iOS
1–1Not supported
2+Supportedsince Jul 11, 2008
Current: 27How to use
This feature is Baseline widely available — use it freely, no fallback needed.
Example
Full syntax and examples are on MDN: HTMLScriptElement.
Feature detection
JS · check before using
const el = document.createElement("script");
if (!(el instanceof HTMLUnknownElement)) {
// <script> is supported
}Documentation (MDN)
Specification
Sub-features
Support for each part of the feature (17). The overall table above shows when the whole feature works.
| Sub-feature | Chrome | Edge | Firefox | Safari | Chrome Android | Firefox Android | Safari iOS |
|---|---|---|---|---|---|---|---|
| HTMLScriptElement | 1 | 12 | 1 | 3 | 18 | 4 | 1 |
| HTMLScriptElement.async | 6 | 12 | 3.6 | 5.1 | 18 | 4 | 5 |
| HTMLScriptElement.crossOrigin | 19 | 14 | 14 | 6 | 25 | 14 | 6 |
| HTMLScriptElement.defer | 1 | 12 | 3.5 | 3 | 18 | 4 | 1 |
| HTMLScriptElement.innerText | 1 | 12 | 45 | 3 | 18 | 45 | 2 |
| HTMLScriptElement.src | 1 | 12 | 1 | 3 | 18 | 4 | 1 |
| HTMLScriptElement.supports_static | 96 | 96 | 94 | 16 | 96 | 94 | 16 |
| HTMLScriptElement.text | 1 | 12 | 1 | 3 | 18 | 4 | 1 |
| HTMLScriptElement.textContent | 1 | 12 | 1 | 3 | 18 | 4 | 1 |
| HTMLScriptElement.type | 1 | 12 | 1 | 3 | 18 | 4 | 1 |
| noscript | 1 | 12 | 1 | 3 | 18 | 4 | 2 |
| script | 1 | 12 | 1 | 3 | 18 | 4 | 2 |
| script.async | 1 | 12 | 3.6 | ≤4 | 18 | 4 | ≤3.2 |
| script.crossorigin | 19 | 14 | 14 | 6 | 25 | 14 | 6 |
| script.defer | 1 | 12 | 3.5 | 3 | 18 | 4 | 2 |
| script.src | 1 | 12 | 1 | ≤4 | 18 | 4 | ≤3.2 |
| script.type | 1 | 12 | 1 | ≤4 | 18 | 4 | ≤3.2 |