[media-types] Re: [IANA #1457903] application/vnd.pr ismatic registration request
"Murray S. Kucherawy" <[email protected]>
| Newsgroups | gmane.ietf.types |
|---|---|
| Message-ID | <CAL0qLwbtmpzhzLs_KmtzK7iHpq7NRLRg9VS-R3jFA7FUHZN4AQ@mail.gmail.com> |
On Tue, Aug 11, 2026 at 4:36 PM Amanda Baber via RT < [email protected]> wrote: > Hi Murray, > > Would you be able to review this new one for us by August 25th? > > thanks, > Amanda > > ===== > > Name: Thomas Pare Hern III > > Email: [email protected] > > Media type name: application > > Media subtype name: vnd.prismatic > > Required parameters: N/A > > Optional parameters: N/A > > Encoding considerations: 8bit > > Security considerations: A .prsm file is a valid HTML document and > inherits all security considerations applicable to HTML (cross-site > scripting, resource loading, etc.) when rendered in a browser context. > Image data is embedded as RFC 2397 base64 data URLs and is not executed. > The manifest JSON is embedded in a <script type="application/json"> element > and is likewise not executed. > > Self-contained files have no external dependencies. Linked-mode files > (those that load the > rendering engine via a <script src> reference) carry the security posture > of that external URL. > Applications processing .prsm files should treat them with the same > caution as arbitrary HTML > documents. > > Interoperability considerations: Files conforming to version 1 of the > Prismatic format specification are readable by any conforming > implementation of the prismatic-card custom element, as defined in the > specification. Unknown manifest keys must be ignored, permitting > forward-compatible extension. > > The HTML container ensures that any web browser can open a .prsm file > without a dedicated native handler; the holographic rendering is provided > by JavaScript loaded from or inlined in the file. > > Published specification: Prismatic Image Format Specification, version 1. > > https://theelectricrainbowcompany.com/prismatic/spec/ > > Applications which use this media: Prismatic ( > https://theelectricrainbowcompany.com) — a web-based holographic image > authoring and viewing tool developed by The Electric Rainbow Company. > > Fragment identifier considerations: Not defined. Standard HTML fragment > identifiers (#id) apply to the container document but have no defined > semantics at the format level. > > Restrictions on usage: none > > Provisional registration? (standards tree only): No > > Additional information: > > 1. Deprecated alias names for this type: none > 2. Magic number(s): none (valid HTML document; begins with <!DOCTYPE html>) > 3. File extension(s): .prsm > 4. Macintosh file type code: none > 5. Object Identifiers: none > I suggest using "N/A" instead of "None" for these fields (see RFC 6838 Section 5.6). Approved otherwise. -MSK _______________________________________________ media-types mailing list -- [email protected] To unsubscribe send an email to [email protected]