2008350 - Implement external <script type=speculationrules>

Status: UNCONFIRMED

(Core :: DOM: Core & HTML, enhancement)

Description

[Viktoria]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36 Edg/143.0.0.0

Steps to reproduce:

Add speculation rules to an HTML doc using <script type="speculationrules" src="<source>" ... </script>

Actual results:

Not supported - currently speculation rules can only be added as inline scripts or HTTP response header

Expected results:

It is expected that developers can add speculation rules via external script, in addition to inline script, to easily reuse speculation rules across documents

Comment 1

[Robert Longson [:longsonr]]

You'd need to get the specification changed first. At the moment it says

• inline script elements with their type attribute set to "speculationrules"; or

• resources fetched from a URL specified in the Speculation-Rules HTTP response header.

Comment 2

[Viktoria]

(In reply to Robert Longson [:longsonr] from comment #1)

You'd need to get the specification changed first. At the moment it says

• inline script elements with their type attribute set to "speculationrules"; or

• resources fetched from a URL specified in the Speculation-Rules HTTP response header.

The spec change is in progress here: https://github.com/whatwg/html/pull/11697. Would appreciate any feedback and confirmation that there is cross-browser support for this!