@startuml legend The plugin you are using seems to generated a bad URL. This URL does not look like DEFLATE data. It looks like your plugin is using HUFFMAN encoding. This means you have now to add an header ~1 to your data. For example, you have to change: http://www.plantuml.com/plantuml/png/06_440CJ_rp_tBDCjzCKIApVd9Ay0_... to http://www.plantuml.com/plantuml/png/~106_440CJ_rp_tBDCjzCKIApVd9Ay0_... It will work this way You may contact the PlantUML team at plantuml@gmail.com But you should also probably contact the plugin authors you are currently using and send them this image For the record, here is your data: 06_440CJ_rp_tBDCjzCKIApVd9Ay0_jflWTUV8esG6MfX7H6FebKVkvX52KayrRj5F0SWSI_ugWVyvxx ViGk96pyiTuIeegnqOikACZuK-Fu5RskRgr0zZikEkrGsZ7SSw8-2Nx4YnA1VuSi0k7yx7H0xNiHgBJ5 Y0A0e9vtydAAmbDnbmO98p17PSnoDldg2daDGXbTszZFAW0b3fDtlTY49YwXrr--NNLRhqcNFzQCQfGz D9mm39JcRDCiyOoPLWEHiJfIQF16ba8oM9NdJDKLf8INTZ44f6Ay2dUE7ENlD89fgrvj_d3EjM_RCrXd QVjxoXdtT2YsB0MpWKmXOl0AucI23C8KFeICkpu0_Twdhsz84aqB8ZbTUmjC0czWunOqO_2Nr-V7FaMI 0-27KQrneLzf6rI9d0PgRiolp5LwpownbqrDKTW4DdaCHlIgbtgSGd7DEpu1cWOL4TyYbmx-iiv0HFNO sSMWaQ01ZJP3k_0Q1csrl8HsD6lz4nuQCA0I4QMF-RNH58HJZA7Z9moAGjePygM4N_MmpxFrooPmEQvq C0FIKTyfbuofxgtIGz_qE endlegend @enduml
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amiga
aws-orange
black-knight
bluegray
blueprint
cerulean-outline
cerulean
crt-amber
crt-green
cyborg-outline
cyborg
hacker
lightgray
mars
materia-outline
materia
metal
mimeograph
minty
plain
reddress-darkblue
reddress-darkgreen
reddress-darkorange
reddress-darkred
reddress-lightblue
reddress-lightgreen
reddress-lightorange
reddress-lightred
sandstone
silver
sketchy-outline
sketchy
spacelab
spacelab-white
superhero-outline
superhero
toy
united
vibrant
Pure Javascript
PNG
SVG
ASCII Art