Test failure (with Mojolicious 9?)

t/auto_index.t started to fail:

#   Failed test '404 Not Found'
#   at t/auto_index.t line 14.
#          got: '500'
#     expected: '404'
# Looks like you failed 1 test of 2.
t/auto_index.t .... 
Dubious, test returned 1 (wstat 256, 0x100)
Failed 1/2 subtests

Statistical analysis suggests that this happens with Mojolicious 9.x:

***************************************************************
Regression 'mod:Mojolicious'
****************************************************************
Name                   Theta          StdErr     T-stat
[0='const']           1.0000          0.0000    23937403367202336.00
[1='eq_7.31']         0.0000          0.0000       0.00
[2='eq_7.33']         0.0000          0.0000       0.81
[3='eq_7.34']        -0.0000          0.0000      -1.33
[4='eq_7.36']        -0.0000          0.0000      -0.71
[5='eq_7.37']         0.0000          0.0000       0.95
[6='eq_7.41']         0.0000          0.0000       0.14
[7='eq_7.43']         0.0000          0.0000       0.71
[8='eq_7.44']        -0.0000          0.0000      -0.54
[9='eq_7.45']        -0.0000          0.0000      -0.49
[10='eq_7.46']       -0.0000          0.0000      -1.24
[11='eq_7.48']       -0.0000          0.0000      -1.64
[12='eq_7.50']        0.0000          0.0000       0.14
[13='eq_7.54']        0.0000          0.0000       0.95
[14='eq_7.60']        0.0000          0.0000       1.07
[15='eq_7.61']       -0.0000          0.0000      -1.24
[16='eq_7.68']        0.0000          0.0000       0.53
[17='eq_7.71']        0.0000          0.0000       1.88
[18='eq_7.75']       -0.0000          0.0000      -1.63
[19='eq_7.81']       -0.0000          0.0000      -0.54
[20='eq_7.83']       -0.0000          0.0000      -0.27
[21='eq_7.84']       -0.0000          0.0000      -1.63
[22='eq_8.0']         0.0000          0.0000       1.78
[23='eq_8.07']        0.0000          0.0000       0.81
[24='eq_8.09']       -0.0000          0.0000      -1.42
[25='eq_8.11']        0.0000          0.0000       1.36
[26='eq_8.12']       -0.0000          0.0000      -2.13
[27='eq_8.13']        0.0000          0.0000       0.54
[28='eq_8.14']       -0.0000          0.0000      -4.62
[29='eq_8.15']       -0.0000          0.0000      -2.44
[30='eq_8.16']        0.0000          0.0000       1.08
[31='eq_8.36']       -0.0000          0.0000      -3.80
[32='eq_8.50']       -0.0000          0.0000      -1.63
[33='eq_9.0']        -1.0000          0.0000    -17678944023855820.00
[34='eq_9.01']       -1.0000          0.0000    -19192620456231444.00
[35='eq_9.02']       -1.0000          0.0000    -17678944023855820.00

R^2= 1.000, N= 141, K= 36
****************************************************************

pink-mist / Mojolicious-Plugin-Directory-Stylish

Test failure (with Mojolicious 9?) #6