Minimum browser versions required for GivingTools

	A	B	C	D	E	F	G	H	I	J	K
1	Feature	Link	Reason	Necessity	IE	Edge	Firefox	Chrome	Safari	iOS/mobile Safari	Opera
2	crypto.getRandomValues()	https://caniuse.com/#feat=getrandomvalues	Performs crypro operations in the client	crashes without	11	12	21	11	7	7.1	15
3	ECMAScript 5	https://caniuse.com/#feat=es5	The version of JavaScript we target	fails to load without	10	12	21	23	6	6	15
4	Web Storage	https://caniuse.com/#feat=namevalue-storage	Store some settings and temporary checkout information	crashes without	8	12	3.5	4	4	3.2	11.5
5	CSS Variables	https://caniuse.com/#feat=css-variables	Themes on donation pages	donations pages won't be themed properly	unsupported	16	31	49	9.1	9.3	36
6	Download attribute	https://caniuse.com/#feat=download	Export CSV link	download CSV export	unsupported	13	20	14	10.1	unsupported	15
7	Blobs	https://caniuse.com/#feat=blobbuilder	Export CSV and asynchronous tasks	crashes without	10	12	13	20	6	6.1	12.1
8	TLS >=v1.2	https://caniuse.com/#feat=tls1-2	Required for PCI compliance	connection errors without	11	12	27	30	7	5.1	17
9	Promises	https://caniuse.com/#feat=promises	Required for like everything	crashes without	unsupported	12	29	33	7.1	8	20
10
11
12
13
14
15	Minimum required by GT				unsupported	16	31	49	10.1	9.3	36
16	Released				--	10/16/2017	7/21/2014	3/2/2016	3/20/2016	3/20/2016	3/6/2016
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100