Firefox not supported

[wassfila]

• style is missing

• document.body.offsetHeight is 0 fallback on window.innerHeight which breaks the parent element value provided by the function create_svg() call

• CSSStyleSheet() throws an error, fallback on appending style element but menu still using style construction

[wassfila]

• CSSStyleSheet construction fixed with f881216

two issues remaining for Firefox

• All back style (might be related to filters support as the context menu now is working properly and demo color points are also fine)
• drag nodes coordinate makes node jump an offset after mouse down

[wassfila]

• get_pointers_Firefox() still failing, touch is broken kept get_pointers_default()