diff options
Diffstat (limited to 'src/css.js')
| -rw-r--r-- | src/css.js | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/css.js b/src/css.js index 2395f42b4..107d85a93 100644 --- a/src/css.js +++ b/src/css.js @@ -153,9 +153,13 @@ function getWidthOrHeight( elem, dimension, extra ) { isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box", valueIsBorderBox = isBorderBox; - // Computed unit is not pixels. Stop here and return. + // Support: Firefox <=54 + // Return a confounding non-pixel value or feign ignorance, as appropriate. if ( rnumnonpx.test( val ) ) { - return val; + if ( !extra ) { + return val; + } + val = "auto"; } // Check for style in case a browser which returns unreliable values |