hubcap scripts

List all script elements on the current page.

When to use

Use scripts to enumerate every <script> tag on the page, including src, type, and whether it loads asynchronously. Useful for auditing which JavaScript files are loaded or detecting unwanted third-party scripts.

Usage

hubcap scripts

Arguments

None.

Flags

None.

Output

Returns an object containing an array of script info objects.

Field	Type	Description
scripts	array	Array of script info objects
scripts[].src	string	The `src` attribute, empty for inline scripts
scripts[].type	string	The `type` attribute (e.g. `module`, `text/javascript`)
scripts[].async	boolean	Whether the script has the `async` attribute
scripts[].defer	boolean	Whether the script has the `defer` attribute
scripts[].inline	boolean	Whether the script is inline (has no `src`)

{"scripts":[{"src":"https://example.com/app.js","type":"module","async":false,"defer":false,"inline":false},{"src":"","type":"text/javascript","async":false,"defer":false,"inline":true}]}

Errors

Condition	Exit code	Stderr
Chrome not connected	2	`error: connecting to Chrome: ...`
Timeout	3	`error: timeout`

Examples

List all scripts:

hubcap scripts

Count the number of external scripts:

hubcap scripts | jq '[.scripts[] | select(.src != "")] | length'

Detect third-party scripts by filtering out same-origin sources:

ORIGIN=$(hubcap url | jq -r '.url' | sed 's|^\(https\?://[^/]*\).*|\1|')
hubcap scripts | jq --arg o "$ORIGIN" '[.scripts[] | select(.src != "" and (.src | startswith($o) | not))]'