This is a feature proposal, similar to: https://github.com/evgenyrodionov/redux-logger/issues/158
For others wanting this behavior, this is the workaround I'm currently using:
const store = createStore(
[...]
compose(
[...]
applyMiddleware([
store=>next=>action=> {
// add stack, so we can inspect in redux-devtools
action["stack"] = new Error().stack.split("\n").slice(1);
const returnValue = next(action);
return returnValue;
},
]),
)
);
The result (make sure you open the "Action" panel, rather than the "Diff" panel):

We finally implemented that in 2.17.0. Thanks for the suggestion!
Most helpful comment
For others wanting this behavior, this is the workaround I'm currently using:
The result (make sure you open the "Action" panel, rather than the "Diff" panel):
