What is the relevance of clsid:D27CDB6E-AE6D-11cf-96B8-444553540000

Question

From the jQuery 1.7rc1 source:

noData: {
    "embed": true,
    // Ban all objects except for Flash (which handle expandos)
    "object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000",
    "applet": true
},

What is clsid:D27CDB6E-AE6D-11cf-96B8-444553540000?

Google is a great tool for finding what a guid is: http://www.google.com/search?q=D27CDB6E-AE6D-11cf-96B8-444553540000 — Greg Hewgill, Oct 29 '11 at 20:38
If you read the comment in the code and the first result from Google, it makes perfect sense. — Ivan, Oct 29 '11 at 20:48
This is now the first result listed. We've come full circle! — Oran D. Lord, Mar 17 '17 at 18:17
[`{D27CDB6E-AE6D-11CF-96B8-444553540000}`](http://technet.microsoft.com/en-us/library/cc737898%28WS.10%29.aspx), Microsoft’s GUID for representing _Shockwave Flash_, which you might be able to find in a museum at the moment. — Константин Ван, Jun 29 '19 at 20:58

score 2 · Accepted Answer · edited May 23 '17 at 12:00

Whenever an object is not a Shockwave flash object, setting expando properties won't work ("expando property"), as uncatchable errors will be thrown. From a glance at the source, this method is interna

From the source:

// The following elements throw uncatchable exceptions if you
// attempt to add expando properties to them.
noData: {
    "embed": true,
    // Ban all objects except for Flash (which handle expandos)
    "object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000",
    "applet": true
},

Search in the source for noData, and many references with appropriate comments appear.

score 1 · Answer 2 · answered Oct 29 '11 at 20:51

According to the code, the point is to

Ban all objects except for Flash (which handle expandos)

This means that the line "object": "clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" is used to blacklist Flash objects. The first result from Google states that the GUID stores "configuration data for the policy setting Shockwave Flash".

What is the relevance of clsid:D27CDB6E-AE6D-11cf-96B8-444553540000

2 Answers2