NOTE: These results should NOT be taken as authoritative. DOCTYPE switching is a tricky thing to test, requiring more work than I've been able to plow into it. Consider the following information a rough guide at best, and subject to change as further testing warrants. Thank you.
| Entry |
Meaning |
| Q
| Quirks mode |
| A
| Almost-standards mode |
| S
| Standards mode |
| -
| Status unknown |
Last modified Monday 27 November 2006 16:59:47 (Eastern U.S.)
| DOCTYPE given |
NN6.x |
NN7.0 |
Moz1.0 |
IE5/Mac |
IE6/Win |
IE7/Win |
| No DOCTYPE given |
Q |
Q |
Q |
Q |
Q |
Q |
| Unrecognized DOCTYPE |
Q |
S |
S |
S |
S |
S |
| Unrecognized DOCTYPE + URI |
Q |
S |
S |
S |
S |
S |
| HTML 2.0 |
Q |
Q |
Q |
Q |
Q |
Q |
| HTML 3.0 |
Q |
Q |
Q |
Q |
Q |
Q |
| HTML 3.2 |
Q |
Q |
Q |
Q |
Q |
Q |
| HTML 3.2 + URI |
Q |
Q |
Q |
Q |
Q |
Q |
| HTML 4.0 Strict |
S |
S |
S |
S |
S |
S |
| HTML 4.0 Strict + URI |
S |
S |
S |
S |
S |
S |
| HTML 4.0 Transitional |
Q |
Q |
Q |
Q |
Q |
Q |
| HTML 4.0 Transitional + URI |
Q |
Q |
Q |
S |
S |
S |
| HTML 4.0 Frameset |
Q |
Q |
Q |
Q |
Q |
Q |
| HTML 4.0 Frameset + URI |
Q |
Q |
Q |
S |
S |
S |
| HTML 4.01 Strict |
S |
S |
S |
Q |
S |
S |
| HTML 4.01 Strict + URI |
S |
S |
S |
S |
S |
S |
| HTML 4.01 Transitional |
Q |
Q |
Q |
Q |
Q |
Q |
| HTML 4.01 Transitional + URI |
S |
A |
S |
S |
S |
S |
| HTML 4.01 Frameset |
Q |
Q |
Q |
Q |
Q |
Q |
| HTML 4.01 Frameset + URI |
S |
A |
S |
S |
S |
S |
| XHTML 1.0 Strict |
S |
S |
S |
S |
S |
S |
| XHTML 1.0 Strict + URI |
S |
S |
S |
S |
S |
S |
| XHTML 1.0 Transitional |
S |
A |
S |
S |
S |
S |
| XHTML 1.0 Transitional + URI |
S |
A |
S |
S |
S |
S |
| XHTML 1.0 Frameset |
S |
A |
S |
S |
S |
S |
| XHTML 1.0 Frameset + URI |
S |
A |
S |
S |
S |
S |
| XHTML 1.0 Strict w/XML |
S |
S |
S |
S |
Q |
S |
| XHTML 1.0 Strict w/XML + URI |
S |
S |
S |
S |
Q |
S |
| XHTML 1.0 Transitional w/XML |
S |
A |
S |
S |
Q |
S |
| XHTML 1.0 Transitional w/XML + URI |
S |
A |
S |
S |
Q |
S |
| XHTML 1.0 Frameset w/XML |
S |
A |
S |
S |
Q |
S |
| XHTML 1.0 Frameset w/XML + URI |
S |
A |
S |
S |
Q |
S |
| Any XML |
S |
S |
S |
S |
- |
- |
| Any XML + URI |
S |
S |
S |
S |
- |
- |
|
